looking for advice: I''ve been sailing for 5 years. I bought a 20'' trailersailer (1977 RK)3 1/2 yrs ago and have been sailing Boston Harbor the past three summers. I''d like to add roller furling to the jib and buy a new outboard (I''ve been using a British Seagull). I''d also like to move up (25-26'') in the next couple of years (I''m not sure I''m quite ready). . . is it wise to invest money (~2000K) in my present boat?