We just bought our first cabin type sailboat it is a Cat 25 and I need to develop a system to do something similar to trailer the boat. I have a couple of questions: What is the A frame made from or is it a purchased item? I assume that you need a pulley at the bow to run the line through. We have not yet taken the mast down but will do so tomorrow to haul the boat home. Previous owner will be there to help.