I did try editing CD0 in Storage to no avail. So I shouldn't need that 4 way IDE adapter? I believe I've exhausted all my options. Not a terribly big deal though mounting a CD ROM with only 1mb of Chip RAM. With the AsimCDFS software loaded and caches set to minimum, it wastes waaaay too much RAM to make anything else of much use. After 3.1 loads and the CD software, it was down to 550-600kb of memory! lol
Ended up just putting a Slingshot and A2091 card back on her. While I don't have the proper cable or a SCSI CD ROM to try out, I'm confident that scenario will work should the buyer decide to give it a go.