Need help with trams line and exhaust

[Woodnears]

I'm in the middle of my build and I am fighting the trans line to radiator. I've got an entropy radiator and a ls/4l60e combo. I recently ordered stock trans lines from a 2002. They hookup in stock format to the passenger side of radiator apparently. My entropy radiator hookups are on drivers side. I thought about bending and splicing in a AN6 hard tube fitting. The problem I have is my 3/8 stock lines are measuring at .393 rather than .375. Does anyone have an AN6 fitting they can measure the Ferrell and let me know if I'm alright? Any other ideas are welcome of course. I'm not opposed to running all braided stainless either. I'm just not sure the AN fittings at the trans will clear the cab or not.

Can someone please school me on exhaust setup. My truck is a full Porterbuilt extreme. I'm just not sure what I should expect for exhaust routing. Here's not much room.