Removing the front and rear crossbars is truly straight forward, only the inboard bolts are through hull fittings, just remove the inspection port on the front and the hull plug just under the rear beam and you will find the nuts that hold everything together. When you reassemble just put a ring of silicone in the beam saddles to help make it waterproof. As for the jib, Prindle 15 were only sold as cat rigged or only with a mainsail and were intended to be sailed that way. If you want a sloop rigged Prindle the P-16 is also a great boat. I imagine that because of the lenght of the bridal wires that came with the P-15 (longer that P-16) is the reason for the small jib that was added. I can remember sailing a P-18 and getting beat to the weather mark by P-15s, because of thier weather performance without a jib.