I used wide pieces of oak so the door and jambs were one piece, carved to fit, drilled holes in it for the bondo/resin slurry to bite into. Ruffed up the glass on the body, then I cut the door out of the whole thing, that left the jambs in place and they match. Beware, you may get some deviation in the skin, mine pulled in when it cured even though I pre fit the oak. Not a big deal, I just filled and used a body file to straighten it out. I found that adding a little resin to the bondo makes it creamier and easier to get it into crevices, etc. just sharing, not refuting anyone’s ideas. Use very light clamping force, just enough to hold in place, you don’t want to put tension on it. Have fun! Watching you makes me want to uncover mine and get back into it... I left off right after making and hanging the doors. Btw, I found that I have better results with professional grade body filler like 3 m, etc... it’s fresher, creamier, etc than the stuff from local stores. Just my experience. I order just about everything on line. There are a couple auto paint stores, but they are higher priced.
