check if that mcx has a closed cooling system.If not that salt will eat the exhaust risers and heads from the inside out.Check for rust in the engine compartment,motormounts etc ect.
look under the dash and see the back of all the swiches look for green oxidation.
What color is the boat and what kind of cover has it?
UV light can fade the darker gelcoats.We just sold my 08 funny thing is it went to France.
overall check ,does evereything work,ballast PP etc etc.
note everything you will find on this boat ,estimate your repair cost and talk them down.
There must be a dealer in qatar & Dubai they were looking for another mechanic on this board earlyer this year.