I like your plan to use your truck. You obviously know how to take care of the rig while getting some use from it. A decent, complete, used plow and some common sense should get it mounted up to your truck. Make heavy brackets that bolt in place. You might need an alternator to keep up with extra electrical demands, maybe not. I would not hesitate to do what you are doing if it were my truck. I hope you have the skills to mount it yourself, I don't like others working on my old stuff. Go for it and let us know how it turns out.
Mike