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oh, and i also tried remapping everything to fit into zbrush, but never got it to work (would still love a solution for that, if anybody can think of one).

I'm not sure what you mean.
You might be interested though in the "one map" Antonia I'll be finishing up within the next couple days. Thta will be a version with nothing overlapping in the UVs, specifically with ZBrush in mind. I'll be getting a file up for that some time this week.
Of course in ZBrush you can also append each body part as a subtool, or you can split into groups, but either way still has its problems.