I had the 386 bridgeboard, 486 slc board, and all of this housed in an A3000T. I can tell you getting a throw away Pentium 4 machine or a 5 year old off lease pc is 100 times better than trying to configure this old stuff.
Just install UAE, Amiga KIT and pop in your amiga drive, run dos box, and you're set.
ALthough cool all The Commodore bridgeboards I had never worked 100% the Golden Gate was great but does anyone remember to run win 3.1 on a good day you needed everything as fast as possible... and even then it was slow. I did have one cool GFX card for the pc called the winstorm from sigma designs, Featured a vesa gfx card, sound card, joystick and scsi cdrom controller buitin to one card.
Also if you can find it the old CROSSINGS bridgeboard newsletter was pretty god, spoke to the author of that she was very helpfull with all this stuff.
OR just walk into walmart, get the cheapest PC they have and install everything on that and save yourself countless hours of wasted life configuring old stuff. Your time would be better spent selling it on ebay to folks who will pay $$$ for this arhaic old tech.
To each his own, I used to have this fascination and I eventually outgrew it.