Welp! As noted before, I'm using a combo of Linden EQ and Particle Accelerator for tone shaping....
...and just ordered a Rupert Neve RNDI. The phantom power aspect should actually be ideal for my uses!
I was using the Darkglass Vintage Ultra v1 for DI, but more and more frequently was using it minimally or bypassing it entirely, and am also using it for direct guitar and keyboards into the B173. The EQ on it is powerful but also really easy to dial in badly, and it doesn't allow for pre-EQ thrupass when engaged.
I don't have the money to throw at a stack of pedals and modules, so advice here + my own research led to grabbing that there Rupert Neve box. I'll keep y'all updated on how it shakes out!
And I think the Vintage Ultra's getting released into the wild if things go as expected....