8kw for $200 isn't so great. I think this 3 phase controller based on the module
http://www.irf.com/product-info/data...m136-1060b.pdf
is geared for AC induction. Of course almost anything is possible with a microcontroller.
FYI, I am currently investigating a PMAC (BLDC) specific controller however, based on the atmega for use with ETEC brushless types and alternator conversions. Will start a thread soon, as soon as I get around to a prototype, but I really want to electrify a few smaller vehicles (scooter, motorcycle).