im looking into buying a biesemeyer, but before i start looking and find one i like i would really like to know what is the fastest/lightest biesemeyer hull there is? k-boat/b-boat/ss boat/ long deck/ race deck etc. if anyone could help me out it would be greatly appreciated

A buddy of mine has this POS 4winns 17' that he is try to get running and he is telling me it is a 1984. I told him hell no it isn't, maybe a early 70's at best. Anyway to tell year of manufactured from the HUL ID? HUL ID # 4WN24421M84B170