These are cad drawings of a frame I designed for a Astro Pro Mod Street van.the roof line would be only 48" with a chop/channel.Projected wt of 2,900lbs wet.It would have a 18" engine set-back.
http://i172.photobucket.com/albums/w...front_view.jpg
http://i172.photobucket.com/albums/w...ont_view-1.jpg
http://i172.photobucket.com/albums/w..._side_view.jpg
http://i172.photobucket.com/albums/w..._rear_view.jpg
Of course it would see some track time.