I had my 230SL repainted in 2008 in Sunnyvale CA. If you want lacquer (which you should) that complicates things since you are also in CA.
After rejecting 5 bids that were all over the place from $8,000 up to $18,000, I got lucky and found a body shop that was about to go out of business. They illegally sprayed the car with MB-172 Anthracite metallic.
Three of the shops I considered had NO interest at all in a "complete" on a classic car. They all want the fast and easy jobs.
In hindsight, I think I got the deal of the century because I got a very good down-to-the-metal job for $5,000.
Please, do not even walk into a MAACO or an Earl Schieb.
My off-site email is larryland.ceo@gmail. I can send you photos of the process and walk you through it.
Regards,
Larry in Santa Rosa