Local classified listing reads: Used 1 time Bimini Top. 61" X 67"W X 72"L. $100. Will this fit my boat? My boat: 1985 Bayliner bowrider 16' with o/b, How do I measure for this? I think I saw a "fitment" guide in the Overton's catalog but can't find it. I know the 67" is the W, & 72" is length, is the 61" height? Where do I measure W & L from on the boat. Does it seem worth $100 if it really is new?