DAC replacement?? Also looking for passionate tube tech

I'm trying to revive an older DAC that needs the DAC chips replaced.  I've called a number of places around the Northwest and just not finding someone who will humor such a job.  There must be resources out there for surface mount repairs...  I'd be very appreciative of any leads that might help me find a well qualified technician.

For a different project, I'm looking for a good tube tech.  I'm in the Northwest, but doesn't necessarily have to be local.  I picked up a tube integrated amp that sounds quite lovely, but it's acting up.  It's a DIY deal with no schematic available.  I'm sure an experienced tech would have no problem identifying what kind of circuit we're working with and be able to troubleshoot from there.  

Thanks a bunch for any leads!