Sending photos is an excellent idea so that you can have more input from this Forum. There is no doubt that this was, and could be a very nice looking car. But with only about 3,000 I6 engines sold in 1970, NOS, used or reproduction parts will be more difficult to locate than a V8. I looked up the Haggerty value of a 1970 I6/auto Sportsroof and here is what came up: #1 Concours (so assume an MCA Gold winner type condition) $20,740, #2 Excellent Condition $14,195. Before you put down the money for the body and the separated engine and transmission I would recommend looking through the NPD or Virginia Mustang catalog (or any other reputable supplier) and just make up a list of parts needed to complete the car, add in paint and body work either done by you or someone else and see what the total is. If you are comfortable with the number then go right ahead and have fun, if not, locate something else.