Another option in that price range for chipper shredders is the American made Mackissic SC800. It uses a hammer mill, which is nice because the blades never go dull (it pulverizes stuff). The motor is a 6 or 8 HP briggs & strat (fairly powerful). The one thing that a hammermill struggles with is wet and fibrous debris eg, papaya trees, banana trees. But those typical decompose pretty quickly on their own. The nice thing is that you don't need to worry about destroying blades with rocks / dirt. I once dropped my felcos down the shredder chute. It destroyed the pruners, but the blades were fine.

For a little bit more, there is the commercial line (Merry Mac). I have this one, but with an upgraded Honda motor: https://www.northerntool.com/shop/tools/product_200306955_200306955 I normally end up pruning about 30 trees per year, and it hasn't ever let me down.

If you check ebay, you can find some deals on them. I got mine for about 1/2 retail price. You'll even see units for sale from the 80's -- they last forever.