the 90 degree booster mount is pretty well standard on g.m. step van trucks. i have a step van frame for my c.o.e. project as well. the advantages of the step van were just too many for me to consider anything else. linkage for brakes, carb, steering column is very close to the orig. coe angle, 400 smallblock 400 turbo hydro' square side tank (30 gallon i think), and wiring harness that closely matches the dimentions of what will be needed to hook everything back up with a minimum of splicing.
the wheelbase of the step van i have ought to give me the ability to construct a 14 foot or so flatbed, and ought to ride fairly good with that wheelbase. post a pic or two, and feel free to private message me. if we keep in contact we might be able to help each other figure out problems together. i ain't above asking for help.
