I Need Ideas...

I just bought a trailer and it has this winch on it: 9000 lb. Off-Road Vehicle Electric Winch with Automatic Load-Holding Brake

The box on the top of the winch holds the circuit breaker and wiring. Mine is gone. Winch works, PO says it was borrowed and came back that way.

I'm thinking of getting some kind of water tight storage container and putting the wiring, etc. inside it. It doesn't have to go on top of the winch; I can bolt it down nearby.

The size should be about 6" W x 6" H x 10" long. Size not critical.

Any ideas on what to use, great FABO minds?

EDIT: I priced a new box, they sell it with the wiring and breaker for $129.99!