You are a very lucky guy to have discovered the Pilot 245! I kid you not, that is one fantastic amplifier. I have had one for close to twenty years now. The transformers on that amp are some of the most musical there are for EL84 amps.
I have a friend who is an amplifier genius who does scratch builds of all kinds. He heard the beauty and potential of the 245 as well and helped me build a custom amplifier using the 245's transformers and the 245 amplifier circuit with just some minor modifications onto a new chasis with all new carbon resistors, black gate and oil caps. All I can say is wow! It competes very favorably with many multithousand amps.
Pilot amps are great, including the 232A and the Model 500A. If you can find them, grab them while you can. You won't regret it.