So, I'm a complete newb when it comes to Jet Skis. I'm looking into buying an older (Cheaper) model Jet ski. How much should a 1999 Tigershark 770 3 seater go for? I don't know the specific model, but generally what price range? The guy is asking $2000 w/ trailor. For a compression test, I'm assuming I have to take it to a shop to get the numbers? and what should I look for before I buy it?