Vintage Wadia Repair Recommendations in U.S.

Looking to repair vintage Wadia unit.  Reputable recommendations within the U.S.much appreciated. 
Why not send it back to Wadia?
Apparently since Wadia became apart of Fine Sounds / McIntosh Labs they only service the newer models - not vintage. I was directed to Audio Research who is also under Fine Sounds however they seem to be unresponsive. 
Might try contacting Exogal. 
Good Advice Thank you.