Here is my setup. . .
It is a simple aluminum plate mounted to the next two fender bolts in front of the stock fuse panel. It uses very commonly available relays so they can be replaced for nothing at any parts store. It uses the fender mounting point as the relay's ground and it has thermally resetting circuit breakers for all the relays. I have
Lights (
Yes they are that big!) so I added much larger wire from the relays to all the lights.
Other then the oversize wires all of this can be removed in about 20 minutes and no one would be the wiser.