You can't find eliminators like this even for 20k. The only thing you could possibly find for cheaper is a 22, but that is a totally different boat.
Anything for sale is worth what someone is going to pay. Because of comments just like these, I don'town a 20' Cig. I couldn't touch a bare hull for what I could have paid for a fully working big block model only a couple years ago. I thought it was a good price until I got a 80 million comments like the ones above.
Look at the boat, do research, be prepared to spend some dough on the engine if it blows, etc. But pull the trigger if YOU think it's a fair deal. Give a big to those who doesn't agree with your decision.