B body fuel tank in a 68 fury?

I've found some previous threads on this but haven't found tips on this swap. I am in the midst of an EFI swap and it looks like a new tank (or modified current one) is absolutely needed to eliminate fuel pump starvation. Any guidance would be incredibly helpful.
Here is one of the more recent pics of Margie in front of the shop she lived at for 3+ years

View attachment 393417
Author: bob68fury