One more thing, since the A500 model is the largest base of Amiga's out there:
- A side-car enclosure with a Zorro II slot to fit the multi-function card, I've proposed in my above post.
Between the A2000/A500 users for the Zorro II card, and A3000/A4000 users for the Zorro III boards, you'll have covered most Amiga models. The A1200/A600 already have a lot of updated hardware for it.