Hey Troppo.
Google “Fruit Forest Farm” - they are based in Feluga near Tully . A lady called Trina sells a lot of their stuff and does a fair bit of grafting - including durian.
She usually comes up to the Gordonvale markets when they are on selling all kinds of tropical fruit seedlings. If you went to the markets I’m sure she would be happy to chat to you.
I have durians, keledang, long kong, chempedak off her
Cheers Jim