Hi Bob,
I have a heat pump in my Toyota RAV 4 EV, but I wouldn't recommend
this setup for a conversion EV.
Electric Blue has some heating and air conditioning products for
conversion EVs.
They also have a cool looking computer for your voltage, current etc.
instrumentation that uses a LCD on the dash for a display.
http://electricbluemotors.com/products.html
Adios,
Jerry Pohorsky
www.eeVeeMotors.com