Wow... apparently I got lucky. All my bolts except 2 in the bed came out just fine. No torches, no WD-40, no vice grips. And the problem I had on the 2 in the bed wasn't that they were stuck, it was that the stupid torx head was slipping (ended up welding two old sockets straight to the bolts
). And that was on a 6 year old truck.
As for extending the brakes lines and stuff, from what I remember there are some clips holding all that stuff, if you lift the body up too far without taking them out of the clips you might damage them. I just undid the 1 screw holding the clip and once I was done I put back in.
Other then that, it's pretty simple. If you have the a PA Kit, it should have come with instructions. Makes it real easy.