I have a 2005 Cub Cadet LT 1045 with a 20HP Kohler Courage SV690 motor. What other (models/sizes Manufacturers) can I put in that will interchange without a lot of alterations. I can Purchase a 20 HP KOHLER VERTICAL ENGINE SV710S-0015 for under $500, does anyone know if this will fit.

Any other suggestions are appreciated.

Dave