Maybe bead blast or sandblast the stock? You could then refinish it with some glossy Aluma hyde II.
I bet you money someday people will be looking for BM stocks like that with the krinkle finish.
ETA: my65pan rocks.
i just used 80 grit emery paper on mine...I didn't just smooth out the finish, I took mine down to the bare aluminum because my finish was pretty beat up (I only paid $10 for it), and I wanted a nice smooth base for my paint job