You'd probably want to include the various hybrids. Off the top of my head, I think you'ld need a sheet/graph for each attributr (morphs, textures etc.) unless you went to some sort of complicated 3D presentation. (Sample not checked for accuracy). I'd use a database rather than a spreadsheet and perhaps a little application with a tabbed interface. Tab 1: Choose a figure and get information like creator, where to purchase, family (e.g. unimesh) or base figure, comments etc. Tab 2 - Tab N: One tab for Textures, Morphs etc. Each tab has a list of figures and a notes field. Select a figure on tab 1 and the other tabs are populated with a list of the compatible figures. Someone maintains a master list (probably XML format) so users can download the newest version. The best part, it should work on PC and Mac and since I only develop for Windows, someone else can do it :-)
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Mencken