If you feel your skills are average then you may want to pass on this one.
I chopped the top on mine 2". I think it is just the right amount. All stock glass except the windshield and they aren't too expensive to cut.
Not sure what page it starts on but you can find some photos in my build thread.
http://67-72chevytrucks.com/vboard/s...d.php?t=324997