I wanted power windows for my 66 dart but I"m cheap!

There is a company called speedway that specializes in custom/hot rods and they have a neat little item that allows you to retain your crank handle and it operates the electric switch. The website currently lists it as discontinued, but it is an idea and maybe there are some floating around on the web.

http://www.speedwaymotors.com/Garage-Sale-Universal-Power-Window-Switch,46308.html