5200# dry weight is about 6500# wet-weight.
assuming a 1993 270 sundancer https://owners-resources.searayweb.com/model-archive-files/1C1_27_74DERNPJJ676.pdf
5600# dry weight
plus 99 gallons of fuel at 6.82#/gallon
plus 26 gallons of water at 8.35#/gallon
Plus holding tank
plus gear
assuming...