Reviving the Dart Lite for daily driving...how should I spend the $$$?

sorry getting to this late, you still working on this car?
I had a feather duster, 4 speed od. I was told all the slant six base models kept the 5 on 4 to the bitter end, mine was drum brakes and 7.25. I ran high pressures in the radials, timing right at the ping edge and got 25 plus in town and an honest 30+ on the interstate at the speed limit, not faster. the od has a steep first gear and the car was fun to drive.