Summit 2.5 Exhaust

I installed this kit on My 70 Dart with Doug's and it fits quite nice. It is all clamped and I want to weld all the joints.

What are you guys doing as far the rear? Mine is full length out past the bumper .

Are you welding the entire thing? I am trying to think ahead if the back exhaust would have to come out for any reason.
If I weld it all, I could un bolt at the header flanges and un bolt the hangers at the rear, but couldn't remove it all due to the rear end. Although I'm not sure why I would need to remove it completely.

Thoughts?