Whats it worth - 70 340 Swinger Basket Case

Let him keep it. I can;t tell you how many times I've seen/heard "all the parts are there" and they are not even close. In fact, never has that been the case unless the car was all together to begin with and we looked. As far as I'm concerned it would be maybe 2K tops. Maybe less depending on the bodywork and actual parts inventory.