Just went through the same routine with my 53. The truck had sat for about 2 years. first I was ready for the stale gas, got underneith to drain the tank and found a totally rotton rubber fuel line, gas had leaked out, bone dry. Then on to start her up, no spark. Finally traced power with a clip on circuit tester, had power all the way to the coil, then nothing. Problem was an open circuit at the spade connector to the coil.
You just need to eliminate each, area ie. fuel, electric, and tune up etc. I've run a Pertronix unit for a few years in my 47 Coupe, it's great, no points to wear out.

It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed