so i ended up having the rotors machined down to 12.5" and the hummer outer wheels machined to fit over the hubs. dropped the spring hangers down 4.5". the stack is braced by a 3"x3" angle iron to which a bumper will be mounted. i still need to do a brace between the hangers. should have plenty of room to put in a winch at a later date. got the shock on the passenger side in, had to drill out the holes to 1/2".

not sure i am digging the blocky look of dropping the hangers down. seems to look disproportionate. it works and is tough though.

the tires hang out a little farther than i anticipated. i am hoping once the bumper is built it won't look as weird.
sorry the pictures are darkish. these are taken in the garage.
things left to do
install drop steering arm
extend swaybar links
longer breather hose
extend track bar
install dually hub on passenger side.
put together the rest of the wheels