Hi Lurch,
Amiga hardware is definitely hard to find in NZ... Ah well, sometimes bits and pieces appear on TradeMe, but usually just basic A500s...
Yep, I'm from Nelson, but I'm a Pom really (don't hold that against me though!) - emigrated out here in March/April so still getting used to all things Kiwi! Brought several Amigas with me though: A1000, A500, A600, A1200, and then bought a stock A3000 since I've been over here, which I've recently expanded.
You can find the A590 setup disks
here, assuming you've got some way of reading those into a real Amiga. If you haven't, give me a shout and I'll write them out on to real Amiga disks for the cost of the postage and a padded envelope.
Soft-kicking into 3.1 is relatively easy, assuming you have legal ROM images of an A500/A2000 3.1 ROM set. Search
Aminet for the relevant software. I can't remember what I used on my A500... I'll dig it back out of its box and give you the configuration if you have no luck with the above.
- Ali
P.S. 3.x ROMs from an A1200 won't work in an A500.