Very nice work on the chambers, man. Projects like these are so much fun!!
Obviously, you're a better judge of what you like in body shaping, but if you were a luthier doing my T-40...I'd have ya shave a little bigger swath out for the tummy cut, and smooth the forearm contour into a single-radiused edge. I think, in general, I'd soften the edges on both the front and back. I guess that kinda Fenderizes it a bit, huh...
One other consideration you may or may not choose to look at are keywinds. As long as you have your woodworking gear running, it wouldn't be too hard to install some nice, light high-quality Hipshot Ultralites. They make a very nice HB6Y that would lighten the headstock noticeably. They're not the same as the stock Peavey ones, but they'd look excellent.
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