I am new to lasers having tried one on my local lake. It was love at first site. I have seen a 2006 Laser 4.7 for sale locally and it looks in good condition and I like the price. I am 72kg / 158lb, and the winds on my lake are usually light, so I think a Standard is the rig for me. Am I correct in thinking that the only parts to change are the lower mast and sail?