condition, condition, condition......spend a little more money for a good body and you will come out ahead. The mechanical's are a lot less expensive.
And as someone above mentioned, be willing to drive a few miles to save hundreds of dollars. Some folks are asking crazy money and just seeing if they can find a dimwit to pay the price. Set a price you willing to pay and then find the best buy for your money. The good part is for 47-54 many replacement parts are available. (the biggest money will be in the body work)