67 chevy truck wiring

[50bomb]

I have a 67 chevy c10 truck we are building. I want to use the original wiring on it maybe patch up what need to be. The truck read that it originally had a 292 with three on three Over drive. We dropped in a rebuilt later 70's sbc350 with th350 trans. Will I need to get an ORiginal 67 alternator to work for the regulater. I think the Alternator I have now is from a corvette and has the internal reglualter so I dont want to fry my original or replaced regulater. I rahter not cut up the original wiring to convert to internnal. Give me some ideas I suck at electrical. I prob make no sense either haha.