disc brakes + power steering

Here is my battle plan. I have a 51 Ford Vic. I want to put Disc brakes and power steering on. Plan A, Rotors from a 78 Montecarlo for the front. These will fit the stock spindals. 87 Caddy Eld. they will, bolt on the stock
rear end. Now I still have to search out a steering deal, or go to plan B. which is take all the stuff steering brakes ect off a S10 and put it on the 51 rails. Question, If I go to plan B and the S10 install measures the same on the 51 as it did on the S10 truck, do I have a problem. you know one of those "oops I did'nt think about that" I am aware that I will have to trim the 51 rails, and will more than likely have to have the bumpsteer if I get any corrected. Thank's
John W burns

How's about a new IFS front suspension made for the '51???? Then you get disc brakes, power rack and pinion steering, and coilovers. All brand new parts as opposed to a bunch of used stuff that probably needs rebuilding.....no geometry problems, either.....