The lenses are looking good Scott!
Just a little tip for ya:
I refurbished the ones on The Juggernaut years ago. I didn't want people to be able to guess the year of the car by the date codes stamped on the taillights, and didn't like those little tiny letters and numbers at the bottom either.
So as already mentioned, I wet sanded the face of the lenses with a block until they were perfectly smooth. This also took care of the minor surface scratches.
Here's the tip tho: If you have access to a full size electric polisher and pad, you can polish them back up to better than new in short order. As mentioned also, wheel polish works good, but also rubbing compound does too.
In fact, you can damn near treat them like a painted surface. Wet sand, then polish with rubbing compound, fine compound, swirl remover, etc etc.
The difference is, with the polisher you can put a little bit of heat into the lenses which helps break down the polish, and enhances the shine. Just be careful not to put TOO much heat into them, as the plastic can melt and smear if you're not careful. Low speed, light touch, and keep the heat low.
Also like paint, when you're done, a coat of wax helps to protect all your hard work.
I did this process on the 'Naut's taillights probably 15 years ago, and they STILL look better than new!
At any rate, looking good my friend. Keep up the great work. Looking forward to what you've got planned as far as the "little modification" on them!
Cheers
D.