Recommend Halfler XL-280 Repair/Restore/Rebuild ?

Per the thread title, my long-term Halfler XL-280 requires, at minimum, a repair. As anyone reading this probably knows, this amp was a very popular unit for hobbyists and rebuild shops.

I see plenty of repair kits on eBay, but my next session with a soldering iron will be my first. Can anyone recommend a repair/restore shop, preferably in the mid-Atlantic/northeast?

Or would you recommend instead sending it to either Musical Concepts or Audio By Van Alstine for a complete teardown and rebuild?

Much thanks for any advice or pointers . . .