Like Marty says, there is nothing other than the command base involved in the track signal generation, so none of those other factors will have any effect on the track signal.
The way the prototype is wired, it's going to take a little time to unwind, and I haven't allocated the time yet. I was anticipating just taking a schematic and parts list and doing a PCB, I wasn't counting on having to reverse engineer the buffer.
It's going to end up being a multi-step process.
Once I have a schematic and parts list, I'm going to have to order boards and hand build a prototype. Only after the prototype is tested will I be able to go to a larger build.