Building/buying a dedicated trainer only bike. How would you design it?

Yeah, I typically run Vectors on TR and Kickr on Zwift so I can watch them side-by-side. I re-calibrated everything and made sure the crank length was set properly on the Vectors and they were a lot closer during my ramp test and workout today. Kickr still a shade higher, but it might be where I can call it “good enough”.

I really don’t want to have to monkey with swapping pedals every day.