Honestly your analog chain looks solid. The Trumpet MC is certainly not a weak link, but you can get more sparkle, detail, and clarity by rolling those tubes to anything other than the stock Mullards. Might be worth a shot. The Trumpet MC is definitely on the warm side. Even without delving into NOS, the Russian Tung-Sol 12AX7 will brighten it up a bit. In the 12AU7 slot you might try Philips ECG 6189, which should be cheap and plentiful even if NOS (1980s).
That said, some people favor analog (for whatever reasons, psychological or hearing-based), and others digital. You might be leaning into the latter camp. I’m decidedly of the former camp - even with all the deficiencies of a Fluance RT85, I still dig listening to that (through a Trumpet MC, incidentally - which is a great match to the lean & slightly bright 2M Blue) over even the Gungnir, Yggdrasil, and even more expensive digital chains.