ARRRGGGHHHH!!!! I swear I am cursed when it comes to this project. While rooting around in my garage yesterday, I bumped something that bumped something else that fell over and knocked my shrouds off of where they were perched while some JB Weld was drying and SNAP! they broke... Again!

They broke along where they had broken before, so the area was already weak. Now I have to JB Weld it again. That was going to be my task for the day, but I have been called in to work, so it will have to wait.
The only other things I've gotten done are to drill and tap the receiver for the bolts holding on the new SD Studios stock and to put threaded inserts in all the places where things screw into the resin shrouds. I drilled the holes out, inserted the brass inserts and then JB Welded them in place. Next up, is to grind down where they stick up too far. No pics of this yet as there really isn't anything to see. I'll post something once I've got them cleaned up.
The new stock in place:

Unfortunately the stock will not be adjustable without taking the shrouds off, due to the layout of the holes on the new stock and the internals of the real Thompson parts combined with the aluminum receiver, there is not really any way to make it adjustable without doing some heavy mod work. I can live with it not adjusting, though.