O M G
Maybe I can post finished pics before you do, and I haven't even started yet
I may have to use that lock too, unless Jim C. will make me a Dlx. Siler w/o the stirrup on the frizzen. The lock on the orig. appears to me, to be a replacement, judging by the loose & deep fit in it's mortice. But it does look correct for the period it was built in.
Looks like a fun project!