Here's English Bob's list of sites.  Maybe this will help. 

http://www.morphography.uk.vu/links_page.php

 

Besides the Mike and Vicki Psiberia/Psiberion sets (which you can still purchase from RDNA), the only other complete set of cyborg parts was Andygraph's sets for V3. 

Is it possible the site you are looking for has shut down?