"if I should stick with the 60 spoke that is on the car now or go to 72 spoke versions"
Frank - I'll probably get in trouble for this but....
72 spoke wheels are probably an (expensive) overkill unless you plan to do a lot of racing or auto-xing.
I've got a '59 100-6 with a 300 HP Ford V8 and 4 speed Automatic. When I finished my "restoration",
I picked the best (true & tight) 4 of the 10 painted 60 spoke wires wheels that I had.
I am running 195-15 tires at 30 psi. With my automatic trans., my wheels do not see the same start-up
stresses as a clutch system, but they do get LOTS of sustained torque.
I have had the same 4 wheels on the ground (2 sets of rubber) for over 5 years
As you can see from the picture and video below, I haven't been easy on them.
Whatever you end up with, just make sure that the splined hubs are good and the spokes are tight.
My spokes still "ping" when struck.
If I can't break'em, you probably can't break'em.
Here's the video.
https://ntahc.org/modifiedhealeys/Photos/1Moran/MaxSound1.avi