Hello from just south of St. Louis!
NICE 3A!
And I really love the history in your post. �
As for a shop to work on yours? �
Man, I have NO idea.
All the old Jeep folks I know do their own repairs.
Same with me.
My 3A is nowhere near as nice as yours but it will be someday. �

Here's a pic of mine:
http://cj3apage.com/forum-yabb/YaBB.pl?num=1353952798/0