Compatible parts with 1970 dart

I have a 70 also. When I bought it, it came with a 72 parts car. (mine was just a shell and missing parts also) After a little research and just comparing one to another, I discovered the 72 was very different. I was able to purchase a 71 and have found it very similar to the 70. The main difference is the rear bumper and tail lights. The 70 is a one year dodge bumper and lights, the same bumper was used a few years on Valiant. Hope this helps ya.