Does anyone have any suggestions on how to convert my pickup to propane gas? Such as where to get the parts.?

I have a 2000 Dodge Ram 1500, 360 engine, and I want to convert it over to propane. I am having trouble in finding the parts, and information on it. I did find one place, but they wanted up to $1200, and that was without the tank. I know I can find a tank anywhere. I just need the parts and info of how to do it. Any help would be greatly appreciated.