Thank you everyone. Also a huge thanks to Dr Dave for spending some time on the phone with me today troubleshooting.
Findings:
-#2 Voltage regulator was bad (zeftronics was ordered and will be primary it is replacing regulator installed in 1980, current 2 year old lamar will become backup)
-Wire from field gen breaker to master switch (K-PB10) needed to be replaced wire/connector became stressed from years of circuit breaker panel removal.
-5 amp field gen breaker was replaced, it was original.
-landing & taxi lights were replaced with led
https://www.aero-lites.com/products
Some testing was done with a multimeter, so far everything looks good. Im going to do some more testing this weekend for voltage drops on other parts of the field gen circuit.
Hoping to fly it tomorrow, also hoping gen field breaker doesnt trip again.