The drivers are 0.669 inch.

"...the hard part would be re-installing a front pilot "
The hard part will be cutting two inches out of the boiler!
I think the replacement pilot for the B'mann on30 Mogul
might work, use the pony wheel from the front drivers and
make a 0-6-0 yard goat from the leftovers.
I'm worried about the firebox being in the wrong: if the
Prairies were made to burn bituminous coal, the box would
have to be behind (not between) the last pair of drivers??
Dave

I broke up my 2-6-6-2 power train when I dropped it about a
month ago. The led mechanism came off but still hangs
loosely by the pick-up wires.
I haven't returned it to B'mann yet because I've been seriously
considering cutting down the boiler, moving the smoke-box
over the back cylinders... adding a pilot and pony wheel and
making a 2-6-2 Prairie out of it.
I have the tools and skill to pull it off but am not sure about
the historicity of the project.
I'm open to ideas.
Dave R.

The "User Guide" is somewhat daunting but now that
I know it's possible, I'll persevere.
Thanks again,
Dave

Why doesn't the "Dynamis DCC Wireless Control System" have sound
functions?
What is the point of producing DCC Sound Equipped locomotives and not
include sound functions on your premier remote controller?
Is there anything I can do to operate my Locomotive's sound functions in
conjunction with the "Dynamis DCC Wireless Control System"?
Thanks,
Dave R.