My take is from a hot rod background, take it as you please.

The issue is the tie rod hole needs to be about an inch closer towards the ball joint then the current location. The exact distance would probably have to be determined. Anything more then a 1/2" would be an improvement.

On the 40s and 50s Mopars, the steering arms were thick and wide enough new holes could be drilled and the holes tapper cut with a 7 degree tapper reamer. Generally, as long as both sides were moved the same amount, things were good. The good news is that the ball joints are forged steel, they can have the eyelets cut off, a section of the arm removed and the eyelets welded back on. Good welding procedures would make the shortened steering arms plenty safe enough for the purpose they serve.

Use of the Cavalier rack (a rear steer version of a Dodge Intrepid rack) would make the process more simple and keep the bump steer to factory Mopar levels. The Cavalier rack has the inner tie rod connections at the center of the rack, with two mounting bolts. The process would involve making a center link that would bolt to the rack with the center bolts and would be the same length as the Mopar center link for your car (personally I would modify your car's center link to bolt to the Cavalier rack). Then you use the correct tie rod assemblies for your car to attach to the new center link that attaches to the rack. You are essentially attaching the rack to your center link and eliminating the steering box and idler arm. The resulting geometry (and function) is the same as you car left the Mopar factory with.

The Cavalier rack mounts in rubber bushings set in brackets bolted or welded to the car's frame rails. You will need to use a combination of steering column u joints and shafts to connect the rack to your steering column. If the rack is properly mounted, the relationship between the column and the rack won't change.

You simply need to get past the point of thinking the material your steering components are made from some mystical material that can not be altered. People have been altering steering components for years. Gene