I bought my first Sunfish and have never sailed before. It's a 1980 and I'm a 1949. The Halyard or rope that goes up to the mast and back seems too short. what length should this be and also the sheet or rope that goes along the boom what length for it. What type of rope should I buy ? I also bought a couple of books, The Sunfish Book by Will White which is too technical for me and more for those into racing. The Sunfish Owners manual by Kent Lewis which had some good info. any better books ? I'll be sailing off Lake Michigan in Big Bay De Noc, any Sunfish groups around me ? Thanks