I’ve been using Motenergy motors on Sunshine for several years - I have Sevcon controllers. You can reach out to Motenergy for support.?
the motor mount/reduction pulleys supplied by ?works well - mine gave a reduction of 3:1 to get max prop RPM to 800.?
You’d be better off building an LFP battery using Winston (or equivalent) cells if it’s in your budget.?
Reuben Trane