Looking for some help - kitted two little Elvers to make with grandson - hull as per drawing attached - 15" vane yachts designed by Vic Smeed - would like to convert them to a gaff rig. Think a cutter rig may well be over the top - possibly affecting the mast positioning?- would love to do it though - used to sail a 19'6" Cape Cutter - fantastic. Would need a drawing or sail plan re size etc - complete novice at sailing type designs - have made the mast movable by an 1/2 inch or so forward or backward (its stepped into a hardwood foot on the deck) - not sure if that's enough.