Marty - I have not spent enough time on system 80 MPUs to assist here, so I'm a little "out of my depth" - But - If you need ROMs and you want to "dig deeper" with the board - Try Ed at GPE ;

http://www.greatplainselectronics.com/proddetail.asp?prod=120-102

I'm thinking of getting a Quickscan - Just for a "play", as I have quite a few Sys80 boards I need to fix. Clay gets dirty in his guide;

http://www.pinrepair.com/sys80/index3.htm#testrom

ROMS

http://www.greatplainselectronics.com/proddetail.asp?prod=140-101

I might have an untested board you can use for testing.