Hello Rich,
certainly, I can pick the color I want and I prefer green. Gaskets, the cab needs to be cleaned, rust removed, probably with a low abrasive blasting and re-painted. All this is much easier with everything removed. Old gaskets are stiff, don't seal well and are a pain to remove and re-install. Just cutting them out is the simplest but no change possible once this is done.
BTW, I noticed the driver side windshield has a rock-chip.
