Suggestions welcome!
I'd replace the coupling caps too, same value, just, with films. You'd probably have to bias them a little hot to get 15W out of PP 6V6's.
I'm also trying to get a cage / cover type thing built for the OT's on that amp. There's not enough room for proper bell ends or transformer covers. I have some DIY ideas I'd love to discuss with you, but, I'm far from a metal wiz.