Chop the top?

I saw a couple chop top early Valiants that looked real nice in Jersey. In the 90's I dropped my 65 Barracuda top 7 inches into the rear quarters with the rear glass intact, cut and slanted the front posts, cut the windshield to match the rear glass, then wound up giving the car to a friend as a gift before I left for the west coast.

What I really like is cutting an electric sunroof and surrounding sheet metal from another car like the BMW or Mercedes cause the top is similar to some Mopars and grafting it on, saving all the electrics for an easier modification.