If you have specific application questions beyond our published specs, you can always email
tech@teamnovak.com or even,
bob@teamnovak.com.
Is there any reason you would not use a Ballistic 550 size motor? We can offer additional wound stators in a lower Kv, if there is a demand.
Also, you do not need to use a crawler-specific 540 motor; we offer the
higher wind/Kv replacement stators for our Ballistic 540 motors. Our Crawler motors have a different sensor board than our standard motors; but for this ap, it probably wouldn't make any difference.
As I have said before, you forum members posting here know more about HV applications (and everything else!) than I do.....

But, Bob can always help you.