Gates would need to be an original figure. The amount of work involved in creating this, (even if you know what you're doing) probably isn't worth it. It belongs to DC, you couldn't sell it and distributing it would be dubious. Most people who know how to make something like this for Poser are too busy making their own stuff.

The three-fingered thing might be faked by creating a morph in a program like Zbrush to mash the fingers together smoothly, index to middle, ring to pinky. If you wanted to move the fingers, it might be a problem. You could switch the geometry for the hands, but that would involve a new hand part and perhaps rigging as well (not to mention a knowledge of the cr2 format.) 

If you have a lot of time and patience you could learn to do all of this stuff. If you have money, maybe you can pay someone to do it for you.

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