I've got some ideas, but don't want to lead the jury
The intent is for the dimension between the shoulders to be the only critical dimension...besides the dovetails fit of course.
The "problem" is the length/depth of the pins...and the need for a clean precise shoulder.
Take a look and tell me what you think!
Thanks in advance,
M.J.
P.S. I am going to make a total of 36 of these (72 'ends'). So keep that in mind