This is the rabbit hole of trying to build a very expanded amiga. I tried this, and after dumping tons of money in, I gave up. There is something to be said for dumping winuae on a 3ghz pentium with 4 gigs of ram. Remove windows as shell,
get it to boot straight to os3.x and your done. No more hardware problems.
I'd still like to build a real 1200 with mediator, accelerator, indievision, rtg, usb and more but I'm hesitant to do so because of past experiences. Its so expensive and there is always problems getting everything working.