I have just aquired a 1996 Oceanis Ex-Moorings 445.What is her hull speed. What is the average and top speed I can expect(no spinaker). How much faster with Maxi-prop. What is fuel consumption just under 2000 rpm,s. What is her performance compared to a 456.What does a 456 weigh?What is her length to displacement value. Also the sail area to displacement. How can I upgrade the R -value in ice box. Sea Frost system.Do sailors frequently cross oceans wih this craft?? Jim