Magnum Exhaust Manifolds in an A Body

Yea, I'm in the same position as you BlueSwinger, I have collected tons of extra parts and not sure whether to build a race 70 Dart or keep all the spare stuff in case some idiot crashes into my car and I won't have to go on the hunt for parts. The only problem is that a while after I have finished a car Im wanting to get a different one and build that up.
Ive had half a dozen cars I built and just about the time I run out of stuff to do to it, I want a different car, could have something to do with ADHD.