Before you buy some things to check:
- Any soft spots in the hull (transom) and deck?
- Check for strong gas smells in the rear
- Get the engine compression checked. 115 is probably too low.
- $3500 is not necessarily a bargain. Keep on eye on ebay. Plenty of V20's for less, though you may have to travel.
- Single axle or double axle trailer?
- Does it include a bimini top or canvas cover?
V20 is a great boat. We bought our first in 1976 and slowly traded up through a series of boats to a 30ft Searay. Got out of boating 10 years ago because of costs. Got back in 2 years ago with my first and best choice, and bought a 1986 wellcraft V20.