Just a thought:
Since the old girl had a rough life, is it worth trying to restore it so that her scars are invisible (welding handles, etc).
Would it be simpler to embrace the bruises and restore it in a way that is functional and sturdy, but the end result would appear as a FWW? (Frankenstein Weathered Warrior)
Personally, I think that would be BADASS, especially if you could find some old metal pieces that would work well as handles, or legs, or wheels. Then, attach those pieces with rugged bolts, washers, and nuts.