Not sure what I screwed up (rocker fit)

[ChevyJr]

So unlike most on this forum, and I emphasize most as I am sure some of you have endured much worse. I had no door pillars front or rear to measure. No inner rockers to guide me or really anything.

Now that I'm done whining, I cannot get my rockers to fit properly. The PO used a lot of Bondo to conceal fitment issue and what not. I took the proper precautions of using steel square tubing to ensure there was no cab flex. Below you will see that no matter if I were to move the door pillars out a ridiculous amount, there is no way this rocker fits. BTW this is the "original" one. I say "original" because I don't know if the PO used a repop or not.

With all that being said. I come to the Elders! (Wise not necessarily old) to ask what I should do. Is this a situation where I really have to open the lip of the rocker to meet the door and then weld up the gap? Any HELP would be greatly appreciated.

I've included photos to show that the door gap, cab corner fitment are good. So the door doesn't need adjusting, but IDK how to adjust the cab corner anymore because the line looks pretty darn good.

As a follow up, has anyone had issues with the inner rocker not meeting the outer rocker flush due to possible the door pillars?

I've tackled a project proving out of my league, but am determined to finish even though this truck has literally taken my soul. Thanks.