depends what your going to do with and how worried you are about the value of it.
70 swingers are not exactly growing on trees these days. Its a one time deal ...once you have it, you have it and the money wont mean anything a year from now.
if you think your going to flip later or want your money back down the road then the fact that its a 318 makes a difference.
myself, once I make up my mind I want a certain car ....its like a marriage....and we all know you never get your wedding expenses back lol