A pair of Western Electric 59A amps with meshplate 252 output tubes. The tubes alone would be worth north of $60k, so the amps would probably be north of $150k. I’ve heard a single amp, not a stereo pair, and it is easily the second best amp I’ve heard. The best, a one-of OTL would be a good choice too, but it is a bit scary operationally, so I would be more comfortable with the 59A, not that this would ever be a reality.