Oh it's getting close now! Spent a solid couple hours last night after the baby went to bed working on this and got the lenses in. Oy! That was exceedingly hard to do by hand. It looks pretty rough at the moment (because it is) but once I get the rounded profiles wet sanded down this is going to look much better.
My only regret is that on my very first pass last week, I slightly misjudged one corner of the right-side lens and now have a 1 mm gap or so. I need to see if I can make any adjustments to get that covered better. Right now the lenses are just fit in by pressure.
Still, not too shabby I guess.
So the final things will be to drill the hole for the earstem screws, cut the slot for the earstems (and make a few adjustments there to have it operate smoothly) and do the final sanding and finishing.
Provided I don't do anything really stupid, these will be done soon!