Your best bet would be going back to a stock frame and suspension for what you want. Rodders will be knocking at your door since you have exactly what most of them want. Remember, you are in the catbirds seat on any swap so insist on getting exactly what you are looking for. The MII alone is a $1500 plus item so your swap chassis MUST come with NEW spring bushings and shackles, NEW tie rod and drag link, Steering gear box rebuilt by Lare's, New brakes/hoses and hardware, New front and rear wheel bearings, New U-joints, and New springs if any doubt about the old ones. All this just about comes to the price of the MII front installed so they will be getting the 4 bar, the disc brake, etc. for free so don't back off an inch.