The upper motor mount will give you some trouble. and the radiator hoses are different . The new exhaust will have to be adapted to the old bike also..I put a early motor in my 2008 frame. Not to much trouble.
By a little trouble do you mean it will work with some finesse? Or will I need to fabricate something? Will new hoses or some type of adapter fix the radiator issue? I was planning om using the 94 exhaust on it. Think that will work?