Re: missing hours meter?
most likely there never was an hour meter...
Hour meters in boats are pretty much worthless at judging the condition of it. Some hour meters run with the key on, forget the key overnight and its +12 hours. Most can be disconnected with a very quick spade quickconnect, quite a few can be reset, and thats even if its the original one. You don't know how many have been replaced since new.
Newer boats (and almost all PWC's) are coming with computerized hour meters tied into the boats ECU, and you can either see it on the dash or read at a dealership. Still possible to get around this system, but fairly hard.