47RE swap (photo ID)

And there are a lot of trees in these swaps.:D
There are really only two bell housing configurations for Chrysler V8 and those are small block and big block.
ALL small block V8 and even the V6 use the same pattern bell.
Don't know if the crank you are looking at has the large register or not for sure, but one would think they fit the later register since there are so many automatics in the car world.

Oh, and those trans tunnel pics, I don't think there was enough cut out of that hoop.
I had to cut the entire raised section of the hoop out for the 42RH to fit in the Dart.
The saving grace for me was that I have super duty frame connectors (2x3 .085 wall) so I wasn't concerned about loosing the support.
I appreciate your comments of the tunnel. Although it is expensive I like the US car tool cross member. I think a conservative approach of trim a little and test fit and trim a litttle more will be the plan.