I did my Driver side and it was a lot easier than I thought it would be. There are some tips and tricks here and there on the forum.
To remove the old skin grind the edge of the door until you see a crack form in the metal where it is folded over. you can pull off the outside then it is easy to find the spot welds on the remaining inner part.
I primed the insides with weld through primer before assembly.
Use adhesive as opposed to welding. SO MUCH EASIER and it seals the water (rust) out at the same time. I used a dolly with a microfiber on the outside of the skin while tapping the lip down on the inside. No other body work was required.
I avoided it for a while because I thought it would be harder than it turned out to be.