Look into Analog Engineering Associates. Ken Leonard is a master at restoring vintage Fisher, Scott, Sherwood or any other tube amp you can think of.
I had purchased a Fisher X-100-B and traded it back for a Sherwood S-5000-II, since I needed a little more power. To date, 20+ years, the Sherwood is the best amp I have had in my system.
Ken has a long legacy on the engineering side of the recording industry. Read the "Legacy" section of his site and you will get a serious understanding of who this guy is.
He has a number of his awesome sounding restored amps that will fit into your budget. Contact him by email or phone Ken is a great guy to chat with.