OK, here it is. I''m 56 years old, nearing retirement, a neophyte to sailing, with a dream of spending my final years sailing single-handed to anywhere in the world that looks interesting. The plan: complete every U.S. Sailing-sanctioned course available, crew on charters to hone skills and build experience with different boats, buy a 43-foot sloop, do enough coastal sailing to be confident of my abilities, make my first ocean crossing, and keep at it until I die. This is not a plea for some experienced sailor to talk me out of it. I''m going to do it. What I need is an honest critique of my plan and any sage advice.