Not sure about the spec for speed etc. But make sure the engines have been gone over in detail .Yamaha had lots of problems with the exhaust systems around this year costing lots of money to repair.Good Luck
I have a 1999 Islander just replaced Soft top with Hard top .Had it done in Elliot Maine Redman Marine Fabricators this guy does outstanding work and welding with a finished interior along with Electronic box well worth the money.Total price with full enclosure around 7K