I've been down this road. I had a pair of Levinson No.20 amps (over 20 years old) that both failed due to capacitor issues. I contacted one of the shops that does both warranty service for Levinson and works on older units. The person I talked to was very knowledgeable about the units, and in fact had two pairs of the same model in for recapping. The cost, excluding shipping, was at least $3500. More if other problems were found. So $1300 for a single amp doesn't sound ridiculous. I ended up selling the amps, unrepaired, to an electrical engineer who planned on repairing them himself. I basically got the price I would have asked for the repaired units, minus the repair and shipping cost. I think the buyer looked at it as a fun task with some cool equipment. Everyone was happy, and I learned how expensive it is to fix amps.