Tool recommendations

If you are measuring ignition timing, then timing tape. Black with white or yellow markings is the easiest to read. Some aftermarket dampers are different diameter than factory Chrysler and so will need a tape for that diameter. Also a tachometer.
I'm with Del, find something older at a yard sale, swap meet or classified.
I have a digital dialback. Its convenient but I don't fully trust it.... When I can, I prefer tape and one of my older analogs.