Elec woes, crank, no start after running then parked.

I'm wondering if it's wiring or "incompatible" parts?
I'll go over it again.
Elec ign,
70+ charging system(square back alt, #3438150 Mopar voltage reg)
SMP coil # UC12 and another unknown name brand.
Tried both Mopar #4120505 and SMP LX101 ecu's
Mad bypass
Homemade replicated dash harness.
So obviously there are a few mods/changes I've done. All in hopes of reliability lol.