I need a 20" shaft motor but have a 25" shaft Evinrude that I can get for a good price. How much trouble would it be to convert if I use my fairly new foot/shaft from my 20" motor and get another mid-section?<br /><br />The motor I'm looking at is a 1999 Evinrude 25hp. Where can I get the part number for the mid-section and where could I find a good used one?<br /><br />Thanks!