Check
http://babel.de/amiga.html for what you need and contact an Amiga dealer for either a commercial Guru ROM (assuming they still have them) or help producing new GVP ROMs. Any current dealer--AmigaKit, Software Hut, Vesalia, et al--should be able to hook you up or point you in the right direction. Avoid eBay if you can. There are plenty of folks in the community who can help you out.
Trev
