Super helpful thread, I followed suit in upgrading the Manley Chinook SE to the ModWright Ph9.0XT. I love me a good tube rectified PS and had a stash of NOS 5AU4 and 274b tubes to swap. I think for the extra $500 cost, the tube rectified PS option is a no brained upgrade.
I’ve upgraded the 6922 tubes to NOS Tungsram.
All the same superlatives as other posts, but noting how much quieter the MW is over my Manley which felt downright noisy in comparison,
I am thrilled with the ModWright. And a lot of folks seem to run the Hana Unami so I may have to look at that option too.