Sorry, Furyofaseraph. Should have checked the link. The item is/was by pmorris aka "Joat Mon." I checked around a little and can't find any other link. At any rate, the .obj seems small enough but doesn't appear to have the features you need. Have you looked at GMax? I've never used it, but it's the free version of Max designed for making game characters. It has a proprietray format but I've read that you can convert it to .obj using some other utilities. I don't know if the program is any easier on resources than Max but I would imagine it is. You might be able to retain your Max skills and still have a lighter setup.

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