AD Rocker replacement

[patrickk1]

I am working on replacing both rockers, both inner cab corners, and both lower inner door pillars. So far i have removed the lower door pillars but have yet to tack them in yet. A friend of mine said that in order to replace all of these things that the cab should be mounted on the frame with the doors on in order to keep correct door gaps. Currently i have the cab flipped on its back on my motorcycle lift so as to easy access to the bottom. I don't quite understand how any of these items will affect my door gaps, other than the lower door pillar of course. To me it would just seem easier to cut out the entire rocker and inner cab corner on one side, replace it, then move onto the next side.

What do you guys think?