The AS won't "require" exteropr repair. YOu can use it as it is.
The dent on the rear end cap can be greatly reduced using something like a "Ding King" you won't get 100% but close.
Rather than remove a segment a new segment can be riveted over the damaged one. Will cost you a few thousand if you do the work yourself. If you have AS do it I guess $7500+
How about a creative patch over the damage, or rivet on a piece of trim
I have a scratched up side I am going to paint a mural over or a wrap.
I also agree with the above posters. Forget about it and go camping. You won't be worrying about scratches in the future.
Sail on silver girl. Sail on by. Your time has come to shine.