Need to figure out how many hours to chop a 29ish Model A Tudor.. I am an experienced fabricator and hotrod/car restorer with many cars published in magazines etc. but have never chopped a Tudor. Approximately how many hours for roof and windshield/garnish? I think I am heading toward a sloper roof with a an inch more cut from the front than the back which will give it a nice almost un-noticeable rake. Total chop in around 4 inches or so. ... .