Another thing I'd look at is a kipper2 memory expansion. Fits under the cpu very nicely. From what I've been able to tell, they're pretty compatible with just about anything as long as you don't bump into the same memory address.
Almost forgot kipper's URL:
http://www.kipper2k.com/amigaforsale/index.htmlOh, a minimeg would be nice to add also for more chip memory.
Curtis