Hello,
I found great Sanken drivers, and very reliable, ok they go up to 16 microsteps and we can go up to 3A depending on the integrated circuit that we choose, I think that is more than enough!
The wiring is very simple around these integrated circuits, and they don't take up much space!
You just have to modify the microstep controls, but I don't know how to do that! is it easy?
https://www.semicon.sanken-ele.co.jp/ctrl/en/product/category/2Ph_StepMotorUnp/detail/?product=SLA7078MPRTTom, I think it's time to switch to a great AstroEq! hihihi!
Good night
Pierre