My 200 hp 1996oceanpro evinrude went last year Im thinking of rerbuilding but I have a chance to buy a 250 1998 oceanpro with good compression and low hours,,it comes with all the controls and harness ,,,can I just bolt it on my boat and hook it up? is weight an issue? my boat is a 23ft walkaround and it has a gil drive the new motor has a 30 inch shaft mine is 25 will this be a problem??thanks