Putting a M-II suspension setup on a 1 ton is sending a boy to do a man's job. I'd suggest putting a front crossmember and suspension system from a mid-1980's Chevy 3/4 ton or 1 ton truck- - - - -control arms, spindles, hubs, brakes and all. It's a bolt-on assembly that should be very simple to adapt to the stovebolt frame, and it's out of a real truck- - - -not a subcompact car. It will also have the right 8 lug wheel bolt pattern to match the 1 ton rear axle, and brakes that actually work for a full grown truck.
Jerry