Yes, the HEI dist you describe only needs a solid 12 volts to power it up, no resistance wire is needed and no external coil needed. But, different plug wires needed.
However, from reading others' posts here at this site, it seems a BFH is needed for clearance at the firewall for an HEI to fit.
The cam gear should be okay, its pretty tough. Usually, the dist gear is made from softer material to avoid destroying the cam.
I haven't ran an HEI dist, so I don't know the tune-up of one to make it work. However, it will get you started. Local salvage yard might have a point dist for very low bucks and very easy to install and use existing wiring, both primary and secondary.
In my opinion, the majority of us are not professional mechanics, but, the ones here who are pro's, are [email protected]
good at it and do offer very good suggestions and tips. But, the rest of us have graduated from the School Of Hard Knocks and School Of What If.
Just remember, the only stupid question is the one not asked.....
Everett "OBJECTS IN THE MIRROR DISAPPEAR UPON RAPID ACCELERATION"