I checked NADA on two boats I'm looking at. One is a '97 Searay 19 w/ 190hp motor, owner wants 8k. One is a '99 Fourwinns H190 (18'6" actual) w/ 305hp motor, owner wants 11k. Both has 140hrs. I checked NADA using the boat specs and the Searay was dead on for "average retail" value. The...