dodge dart compatibility with plymouth scamp?

Cool thank ya i got a picture of it to.
the specs from what i was able to tell are
It has a 318 with a 904
8 3/4 rear end
engine runs but needs a freeze plug
And it looked like it use to be a ragtop

I'm gonna get it on Wednesday but i had a question i didnt get a picture of it but, there's a chunk so to speak that almost looks like bondo on the rear pillar. And i dont know how much of a pain in the *** it is to try and repair pillars.