This is my first post here, i recently bought a 1981 K10 with a 250 engine, and im planning to rewire the entire truck because it has some electrical issues.

I already saw some wiring harnesses online and i came up with two options:

1 The universal wiring harness that is sold on the page 174 of the LMC truck catalog for Chevy pickups 1973-1987. $ 399

2 The painless performance products "18 Circuit GM Truck Chassis Wiring Harness 1973 - 1987" $ 550

I want to ask which one is better??

best wishes