Hi and welcome to the site.  Pretty much what everyone else has said...   Way too high a price.  Look at the stern closely.  Although not a game changer, see if you can see sealant on any screws going into the hull from transducers, speed sensor, whatever is mounted on the stern.  Everything that is screwed/mounted to the back end 
must be sealed.  Your biggest concern is going to be a soft transom or deck.  Walk on the deck all over, bouncing a little on the balls of your feet as you go.   Don't skimp on this, and don't worry about looking wierd..  You're talking serious money here, and an ounce of protection ..etc.  What you're looking for is anyplace that feels soft underfoot.  That motor being a 4 stroke is going to weigh more than a 2 stroke of the same size, so you'll want to make sure the transom is soild.  Good luck with your hunt.  Oh, and Randlemanboater is wrong, the 1978 is the best V20 hull...   just humor him.   
 
		
				__________________
				1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer
1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer
1996 V21 w/1993 200HP Mercury on a Shoreline Trailer 
All towed by a 5.7L Hemi Durango.
 
 
If God didn't have a purpose for us we wouldn't be here, so
Live simply, Love generously, Care deeply, Speak kindly.
(Leave the rest to God) 
 Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
 
Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.