I think you may find that your boat is too new & too expensive / worth too much for someone to have parted out another C 36 for parts. If there is anything salvageable in regards to your rudder, then perhaps u can have a good fiberglass repair yard rebuild the existing rudder & tube, or use it as a template for a new one. It will cost U big bucks to build a new rudder from scratch, but U gotta have one, right? As far as the strut & shaft, they are a lil more generic; The shaft stock is solid Stainless steel rod, so it should be available by the footage length necessary from a marine engine rebuilder/ shop in your area. The strut is another item that I would try to repair if possible, because it is solid bronze & way expensive to have cast as a custom made piece. I would check with Catalina Direct to see what is available. Hopefully U got some good insurance $$ for the damage, as I've heard of estimates of 5 k or more for new rudder replacement.