57 gas tank relocate tutorial?

[Groenys 57]

As you could guess I'm wanting to move the tank to the rear. Ive searched the forums and have found many pictures of rear tanks that are installed and which ones to use. What I haven't found is a post of how to actually do the relocating. It looks like I need to remove the bed from the truck but I have never done that before. Is it as simple as removing the bed and placing the new tank in and moving fuel lines? If anyone has links that will help me that would be much appreciated. I haven't worked on many vehicles before but I want to do as much as I can on the truck.