Best place to service vintage Audio Reference amps


I’m thinking of have a full service for my Audio Research Classic 60. 

I’ve already replaced the main caps and a full new set of tubes. But I want a full check up now. 

Other than ARC themselves who is a good timely shop you can suggest?
last_lemming
why would you not send it to the company that made it and would be able to fix anything that might / could be wrong with it ?           

have read to many horror stories where somebody tries to save a few dollars and looks for an alternative on something and next thing you know, the piece of equipment doesnt work like it should or is a million pieces and cant be fixed now.

       
Well there must be authorized repairs services for the older gear.  I was asking hoping to hear some personal experience with qualified shops. 
there are vintage audio places......just use google and type in                     " vintage audio repair "  ....and then contact them and see if they can work on the equipment you have.