im discusted with old guy purists

A while back I was in the market for a 440. There was a guy in town selling an old Imperial for $400. I thought that was perfect! I went to see the guy, he started the car and it sounded beautiful. Everything checked out. My dad and I spent a ton of time looking at the engine but the guy kept showing us the interior, but we didn't really care. He asked "what do you guys plan on doing with this anyway?". To our error, we said "we're going to pull the engine and slap it in our Duster". Yeah, big mistake. He just told us to leave.