Thanks all for your kind words.
Steven, The lock bolt tab just flops as it is now. The original rifle had a sort of surround similar to what one sees on a Greener safety which contained the retainer detent/spring. Not sure if I will take the time now to make something similar.
Ryan, The hammer was made from a piece of 1018 bar stock. Sights...I think I have a few old express sights and will clean one of those up.
Here is a pic of the lock inside. Still some clean-up here and there as you can see