Can anybody suggest a reliable A/C shop for conversion to R134a in California?  We got a quote from a local a/c shop for $900, who probably has never worked on a van (whom we didn't trust) and then we went to another local VW shop.  Quote was $420 to begin with and ended up at $1,600 - we decided we didn't want A/C THAT bad.  We would still like to convert sometime, but not for that price.  We're located on the central CA coast, but can travel wherever.  Any good suggestions?

  Bob & Sharon Mendonca
  88 Westy
  88 Vanagon GL