100TPI floppy disk drives

Hi, I recently bought this S-100 chassis with four Vector Graphic boards. Based on what I gathered from searches, the Vector Graphic system uses 100TPI floppy disk drives. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=ADME:B:EOIBSAA… 1&Item=320164273848 Will anyone confirm which disk drives are compatible with the Vector Graphic floppy disk controller? I believe those 100TPI drives such as the Tandon TM-100-4M. There are probably others from Micropolis as well so if you know of some please include them in a response. In addition, I would like to extend the Catweasel hard sector decoder software concept to the Vector Graphic 16 sector 5.25" hard sector floppy disks. I have written Catweasel floppy disk decoder software for the NorthStar which now seems to be working pretty good. Also, the Catweasel Heath project is coming along although not as far along as the Catweasel NorthStar software. It can make images of Heath SSSD floppy disks. Does anyone have some 100TPI floppy disk drives they would be willing to sell? I think I will need at least two or three drives total so even if you have only a single drive you can part with, I would appreciate an offer. Thanks! Andrew Lynch