Looking for Space to Fix RV type Items on My Bus - So Cal Area

[Busster]

I need a spot where I can do some service work on the house systems (electrical mostly) on my 1963 MCI MC5 bus conversion.  The bus runs well and doesn't slobber oil, as the air boxes vent into a collection tank.  No repair work allowed where the bus is stored and I don't have space at home.  I want to do from 1 to 3 days of work on it and can drive it away at the end of each day if needed.  I am in San Diego but would go as far as L.A. for an off-street spot to work on my bus.  I can pay for use of the space.  Shade is nice, but not required.  Post here or message me if you know of some space I could use in the next two weeks.  Thanks, David