If you do decide to chop the roof two things from my experience:
DO NOT BEND THE PILLARS TO MATCH!!! please section the roof and add the material to make it longer. Yes it is much more involved but everything lines up so much better and works so much better. It is not like that Dodge cab/roof is rare if you mess it up, throw it out go to the jy and grab another roof.
Do at least a 3" chop if not 4"+, I helped do an F150 a few years back and he didn't want to go very aggressive and only did it 2". Now for all the time and effort, and money to do a good chop, it is barely noticeable, and he kicks himself every time he looks at the truck.
It is not that hard of a process, but take your time, plan it out, measure at least twice cut once. Go SLOW on tacking, nice well spaced tacks, minimize warping, you will thank yourself later when it comes time to finish it with body filler.
The actual chop and tack only takes about a weekend, the finishing is where the hours are put in.
Chopped roof, and suicide doors are my two favorite custom looks.