I have a Kingfisher 2825 with twin Honda 150's on it. I currently have 3x14.5x15 stainless props on the motors. I am looking to buy a pair of back up props and I want to by aluminum ones. Any suggestions on what size/pitch to buy to back up the stainless I currently have. Also any suggestions as to where to buy them in Anchorage. I dislike the Kingfisher dealer in Anchorage so anywhere but there.