Nostalgia pro stock advice

I am interested in building a 70 or 71 era correct nostalgia pro stock Duster to drive to cruise ins and on the street. First does anyone know where I might find tech information in suspension and stuff like that of that era? Second the car I have is a fairly rust free 71 Duster. It is a 340 shell no engine or transmission or interior but I do have clean title vin fender tag and build sheet. I just don't think I should hack this car up even though it will never be a number match car some one could put it back the way ma mopar made it. I am just asking for thoughts ideas and suggestions. Also any direction where to look for my tech information. Thanks.