Topic: Need ~12' long enclosed trailer to rent/borrow in San Diego area

I need to bring a bunch of stuff down to a mid-week car event (a rolling fiberglass car body and related parts) and I hadn't thought about the need to secure it all when I'm not standing right next to it.

Is there anyone in San Diego area who has like a 12'x6' enclosed trailer (short height is fine) that I could rent for a few days? Need it for next week, preferably from Mon-Thurs