You can get the regulator out without having to cut the doorskins! I pulled all the glass from mine a couple of months ago and can't remember if I brought the regulator up through the top of the door or down through the hinge access panel. Either way, it wasn't hard and certainly didn't require cutting the door skins!

'51 Chevy 1/2 ton w/'62 261, HEI, offy, fentons, dual carter/webbers, t-5 & 12 bolt posi