Mystang,
Ripmax has a website (
www.ripmax.com) and they have an e-mail line in it.
My experience with Ripmax was with the coyote slope glider. Instructions were printed on the back of the box and were rudimentary at best.
I think the problem with Ripmax is that they are really a distributor and not a model manufacturer. I looked up the Evolution and they pretty much say that you're on your own as far as motor, radio, other equipment.
Wish I could help you more. Just for the record, I really enjoy my coyote. It's a great little slope machine, so good luck.
papermache