What to do with A body parts?

Okay, question about my replaced parts. To sell or not to sell, is the question? I just got a 72 Dart back in February and have since mini tubbed it and got all kinds of goodies at Carlisle that I am putting in. For instance, I wanted to go to bb pattern and upgraded my brakes, put in racing seats, and got a new 8 3/4 that was cut down. Is there any market at all for small bolt pattern front brake set up (upper control arm, small ball joint, and drum spindles)? Should I keep my factory front bench seat, "just in case I ever decide to go back stock," when I know this will never happen? Should I hold on to my 8 3/4 small bolt pattern rear housing and brake set up as a back up or should I just sell off everything since I truly don't ever see me putting any of these parts back on? Mopar stuff is harder to find but at the same time I need to make some space. Just wondering what everyone else thinks about this since I know most of you have already walked down this road. Oh yeah, while I'm thinkin of it...I have my rear leaf springs out and was going to paint them and noticed that my right one has 8 segments and the left only has 6. Is this true for the SS springs, stock, or some back woods hill billy bumpkin job that I happened to purchase my car from? Any insight is greatly appreciated.