Which Power Rack&Pinion easiest/cheapest install?

I wasn't going to reply because you were looking for the cheapest....but your steering and suspension isn't anything you should cheap on. I would strongly recomend using the RMS alterkation system. Bill's set-up is top notch. I know theres others that do this type of system, and do not have any way of commenting if they are good or not, but i did purchase the set up for my 69 Dart and sold some of his kits. No issues, very easy to install.