Greetings fellow Hoosier! You've started with a nice frame. I have an identical handle bar that's going on my bike. It came from an old 50's/60's Schwinn which broke in half recently. I'd definitely consider removing those fenders. They're not made to withstand the vibrations you'll be having with that motor kit. Having a fender come loose at 25+ usually doesn't end well.
So, are you anywhere near southern Indiana, as in the Jeffersonville, New Albany, Clarksville area? If so, we could go ride sometime. I know some pretty awesome routes around here. I also know of a lot of basically abandoned gravel roads that run through miles of fields and forests, if you're interested.
Well, wherever you are, I wish you good, safe riding. Don't forget your helmet.