Update:

I think I've taken it all as far as I can, and failed to get as far as I thought I would.  Much variation is not possible, and this is where things get disappointing.  In crucial areas, I'm working with as few as four polygons.  

Tomorrow is a day off, and I will continue tinkering around with it.  The focus will be on reworking the texture maps.  I'm going to need to try very hard to remember how to do all of that lol.

-WTB