Restoring my 74 swinger

My two cents. In regard to metal work. I am not expert, the sanding mentioned above was told to me to be safe, but a bit labor intensive. Blasting was described like welding..it is heat and time. A long exposure on a flat piece and you have an increased risk of warping. If I am in left field...someone will tell me. As far as the motor question...you are flipping right? So less in and more return is your objective? I have two builds going on the 74 is a small block driver. The 72 is a complete mod and 440 transplant. You can put anything in the car, but in my opinion you have to address weight and HP issues differently In both projects. If you do it right you are going to be cutting it close to get your money. Consider where you plan to market and how much you are looking to sell for as you plan the build. If it is going in your garage....that is a whole different monkey!