http://www.ebay.com/itm/IMSAI-I-Must-Save-Apple-Immediately-very-unique-historical-IMSAI-/160866262288?_trksid=p5197.m1992&_trkparms=aid%3D111000%26algo%3DREC.CURRENT%26ao%3D1%26asc%3D14%26meid%3D1400564767038493748%26pid%3D100015%26prg%3D1006%26rk%3D1%26
Found this interesting unit for sal on eBay this afternoon.
The "Back Story" is what is really intersting.