As I said, I have all the doc (and MSDOS disks) but not the card. I should get a hold of the guy I got them from to see if he might have the card kicking around.
According to the Mac86 user's manual, it requires a MacSE with System 6.0 and 1MB RAM (2MB for multifinder). It uses an 8086 processor and an external PC floppy drive is recommended. It shares the Mac OS clipboard and printers. No mention of on-board RAM.