Sorry, from your post I can not figure out what exactly want to achieve (perhaps because I'm not very fluent in using Maya...).
If you (or anybody else) have got any good ideas on how to improve the software, I'm sure the people at Maxon would be happy to hear about it. They have even put up an online suggestion form for the purpose, so it is the simplest and quickest way. If your suggestions make sense and are viable, I have no doubt they'll incorporate them in one of the future releases.
And if you feel that "there's no need for the Bodypaint" in your line of work, then my humble suggestion would be to simply stop using it and try doing all your texturing in pshop. Though I fail to see how it could be better, faster or easier...