1969 B7 Dart project

I'm in the process of a resto mode on a 1969 Dart as well. B7 is my color. 360 with a Tremic 5 speed and a strange rear end.
What type of rear leaf springs? I like the stance of your Dart. Are you running P235 tires in the rear? How did you wire battery in the trunk?
I plan on doing the same thing.

Your Dart is Great
Hope I don't ask too many questions
Thanks