Haha ! The more i think about it, the more it looks complicated for lazy me.
I'm picturing a bi timbral or bi osc sound generation patch on the axoloti for the left and right output.
Two tube amplifier is a lot of space & money There is cheaper tube amplifier but with the tube inside (probably the same sound but... ). i'm pretty sure it need an uncommon or extra power supply. Metasonix has a noisy reputation. Erica fusion mixer looks good but a bit overpowered for this idea. Elby design seems a good idea if i swallow the dream of having two glowing lamps on a synth.
However, if i forget totally the tube fetishism, the doepfer amplifier seems pretty good or the future InAMP from Befaco .
Doepfer mini case only provides slots for 4 modules i see. seems tight for the amplifier, comparator, filter (oh god which one ?), dual function generator (one used for volume env and the other for lfo/osc/env), spring reverb, mixer/multiple and 6.5mm jack output.
Also i need to think about how i can manage keytracking on the filter and not losing my girlfriend if she finds an invoice for modules.
But that's some foods for thought !