An A500 or A500+ is not supposed to be hard to find. A Zorro2 expansions box is something I have already seen on Hollandish Ebay, a CSA 030 card is unknown to me but I know of the E-Matrix 030 card for the A500 with scsi. A cdrom can be found anywhere and a CV64/3D will work as good as a Retina Z-II. I may be that an E-Matrix will only accept maximum 32 Mb so no 128 Mb ...