Well I'm gonna soon have the Dixie Gunworks 32 1/2" scope for my Target model. I ALMOST bought another tang sight from Lee Shaver, but changed my mind at the last second. My original plan was a scope and I'm sticking to it.
This is it. The mounts, according to Lee, are not much more than left over plumbing fixtures, and I tend to agree. This was not an issue to me since I plan on either making my own or buying better ones. I'm getting my scope off one of the single shot forums elsewhere for much less than new, and it's a new in box scope, so I have enough left over for good mounts.
It's a 4X scope with 3" eye relief. Should be plenty for the 38-55, but maybe not enough for 45-70. If you were using only BP in the 45-70 it might though.
I will post pics of the process as it develops.