Best Swap Transmission?

Depending on the rear gear ratio and your statement of very little interstate driving,sounds like the 904 without a overdrive should do the job.I researched the cost of a Gear Vendor set up for my old truck and when all is said and done you can have $4K invested.Will you be using the Mopar Performance engine controller/wiring harness ?
The GV is not cheep for sure.I could do the engine this year and the trans next year but I think not. Sublime(DIYHemi) is developing the harness to do my 2012 truck engine so I will wait for them I think. The kit from Sound German for the 8HP70 is well proven.