HEI old school distributor

Im looking for recommendations on a distributor for my 340. Are there any HEI units that mimic stock? Also I'll be firing this motor soon, car is a shell save motor and running gear, no wiring harness or dash in car. I'll have a mechanical oil pressure gauge and temp gauge rigged, what are my electrical dos and don'ts without using the wiring harness? Ive spun new motor oil pumps with a drill in the past, what are some break in rpms and run times ? Guess I should rig a tach for sure yes?

Thanks

Mopar HEI Conversion