No harm in trying no matter what. 

I don't know, but they were doing tons of them and I've seen even bigger ones in Thailand.  I can't see where they would continue to do this if there were only upset customers at the end of the line.

I'll be putting a seedling heat mat beneath mine with a thermostat for when I drop the GH temps down.

My store-bought experience has been that cherimoyas from USA were always very good while every single fruit from outside the US has been shitty.  Fruit is so bad, I wouldn't even chuck them our Ohio douche bag John Kasich.

The PH on Juan's farm down there is 4-4.5.  There's no denying how well everything grows and tastes.

Now that is pretty cool.

I've had them all.  The following has been my experiences.
Thrips were the worst.  There is nothing we can purchase off the shelves that will kill greenhouse thrips...instead, just creates yourself a super thrip.  You might be able to curb them but if they want to stay, they will.  They destroy foliage before it has even had a chance to emerge from the buds.

Spider mites can get into high numbers before you know what hit you.  Luckily, they seemed to target certain plants.  Pruning, partial defoliating, then a few applications of Hort oil pretty much does the trick.  The oil just sucks getting it on your glass.

Scale and mealybugs can get out of control as well.  It's very satisfying to go round the plant smashing the damn things.  Again, some partial defoliating and pruning...followed up by Hort oil usually stops them in their tracks.

White flies.  These little bastards are my latest enemy and they are driving me to the point of needing professional therapy.  They've overrun the garden and of course they find their way into the greenhouse.  I've nailed these things with many products.  Knocks them down but they get right back up.  It's maddening.  I think Hort oil is going to be the way to go with these as well.  Have to smother out the eggs.

I've tried fogger bombs and products I've probably had no business using...all failed.  There are probably commercial products that may control them but none will wipe them out.  Plus they can run into the hundreds of dollars for just a quart.  I've tried blasting with water.  Cussing.  Yes...lots of cussing, but achieves nothing.  I've also tried every type of beneficial insect and maybe...just maybe...all but one was a complete waste of money and effort.
1.  I've released thousands of ladybugs in the greenhouse.  Even with windows and shit closed, every single one of them have disappeared by the next day.
2.  I've put out ladybug and lacewing eggs.  Have never once spotted any larvae.
3.  I've released other live predators and really doubt their effectiveness.
None of these predators no matter the form you get them, are cheap.  And supposedly the ONLY way they are effective is by repeated applications.  So you know who really benefits from this.  There was a spider mite predator that may have helped when released among my bananas.  But overall?  I've found that Hort oil is the cheapest and has been the most effective.  You cannot let your guard down at all.  You have to always be checking stems and leaves.  Give one of these little bastards a few weeks of inattention and it is game over. 

5" trunk and 35-40' tall?  Doesn't anyone else think that is going to be just way too effing heavy to drag?  If you are really wanting to save the tree, I'm with knlim000.  That would grab all the roots you need and put it right where you want it with a hell of a lot less stress on the tree than trying to dig out would be....if you could even do it!

https://www.google.com/search?q=durian+fruit+opener+tool&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjF4ODR-ajPAhVIxoMKHWWeBTIQ_AUICSgC&biw=2133&bih=1071&dpr=0.9#imgrc=Qr0L79k1hhMXdM%3A

When I was in Thailand, all I wanted was to try other cultivars besides Monthong and was always disappointed that many times it was only going to be Monthong.  The thing is, it was always very good!  Sometimes a better flavor and texture than some others.  I've found that I prefer the flavor/texture of fruit that have just begun to split.

Don't forget the dangers of the fruit falling from the tree.  Nailed it Oscar.  In addition to the various flavors, I believe the majesty of the tree itself, and the sheer uniqueness/midievalness of the fruit do put it in a class all its own.  It is certainly not your average "plant it and forget it" kind of tree.  I found this out the hard way in Thailand of all places when I lost three lovely specimens this past summer.  Have you thought of fashioning one of those fruit splitters/openers sometimes seen in pics?  Seem to do the trick quite nicely with no fuss or punctures.

Good looking tree.  That's quite a lot of growth.

I've had this happen before as well.  However, recently I planted a bunch and they all seem to be germinating much faster than before.  I did not scarify or treat them with anything.  Give them time.  I've been told that they can take a while.  Don't give up on them yet.