this is the plan for my car. a good friend did to his car aprox 20 years ago and we will do it to my car soon! 1) Cut a V notch in the A pillar, near the top of the cowl area, just below the windshield. It should be about 2-3" deep. 2) After putting something inside to support the roof, make a cut right across the roof in a cross-car direction, about 4-5" above the top of the windshield. (do not remove the windshield: it won't be cut). 3) Pull back the windshield until you acheive the desired angle of chop. 4) Weld the V notches closed on the A pillars (that you cut in step 1) 5) Cut another V notch from the bottom back corner of the rear quarter window all the way to the back of the pillar. DO NOT CUT ACROSS THE BACK!!!) The rear window does not have to be removed. 6) Pull the roof down to meet with the new location of the top of the windshield. Make sure that you have a nice profile along the roof from the top of the glass all the way to the deck lid. 7) Cut the excess material out of the roof to accomodate a butt-weld seam where the front and back meet. 8) The sideglass will now have to be flat rather than curved (like a 60's or earlier car). The rear quarter glass should be mounted against a flat fabricated window frame. 9) Fabricate the window channel for the front doors, allowing for flat glass. 10) Cut masonite templates for the new glass, go to the local glass shop and have the shaped cut out of laminate flat glass.
It isnt that simple... Lots more sectioning than he assumes, Hope he is ready to deal with the curvature of the roof and the fact that it is narrower than the body at the belt line. His method may require the roof to be narrowed longitudinally with the pie cut method he is proposing. It will be cool looking when done as long as the proportions are kept correct.
Ihave seen a few chopped Mavericks in pictures around the internet (one is a four door) here are a few pictures of one of them. http://mmb.maverick.to/gallery/browseimages.php?do=browseimages&c=65&page=2
That isn't really a chop then is it? All you are doing is laying back the windshield a bit and angleing the roof down to meet it. A true chop involves taking inches out of the height of the entire roof, glass and all. The black more door from Canada has a full chop done to it. Not just an angled windshield!
I didn't hear him say anything about cutting down the door frames and the b pillar. There are a few angles to deal with in the proces.