Okay, here's the thing. I have a barebones A500, with an A590 and A570 (CDRom??), along with it, on it's way to me, right now!

I had intended to make a retro gaming machine, with an a1200 I bought years ago, but then Amithlon came out, so I sold the A1200, to buy Amithlon. That's besides the point, though. I have access to my old A500's 030/50 Derringer. I wanted to put following things in this A500:
CSA Derringer 030/50 w/ 32MB of Ram.
Jen's A500 clockport adaptor, piggy-backed to the 68K slot on the Derringer.
A Subway USB (clockport version)
Jen's KickFlash (I was under the impression they're selling them now? If not, I'll need a rom switcher)
That leaves me one, open port for something like a flash drive or SD card, internally and then I can mount the USB brackets to the back of the A500, so I can use the USB ports, on the back of the A500, for Mouse and Wireless. I wanted to use SD cards, so I could have a pullout drive, in theory, for 1.3 and 3.9. :-D