You can PM Jangaard on here and see if he knows someone. He is from the South Bay area and probably will have a contact. I also know there is an RV place off of the 405 and Wilmington. The address would probably be on 223rd st in Wilmington or Carson
Edit: I found it
Cruise America - Los Angeles
2233 E. 223rd. St.
Carson, California, 90810
Rental Reservations: (888) 551-6052
Sales & Other Information: (310) 522-3870 www.cruiseamerica.com