Need input on the purchase of a 1986 SeaCraft 20' CC Fisherman

[ncarolina]

I am looking at a 1986 model year 20' CC (hull manufactured in Dec. 1985) by SeaCraft Industries and not Tracker. Motor is 1995 Yamaha 150 HP TXRT Salt Water Series (V6 2 Stroke) and just serviced. Of course, I am concerned about the age of the motor, and when (not if) a new one will be needed. This boat has the original (but optional/added equipment) of a 23' sized SeaCraft console, and the boat has been partially restored as follows:

1.) New gas tank and fuel lines.
2.) New deck under console.
3.) New wiring, bilge pumps, and live well pump.
4.) Comes w/ 4 year old or so Furumo GP-1650F, Verizon Intrepid VHF, and Pioneer stereo w/ amp and 2 speakers.
5.) Custom LED lights.
6.) Gel coat and hull color are original and in good condition. Needs a few minor repairs at the rear near the black plastic vents and at the nose of the boat.
7.) Deck has been painted but will need it again in the future.
8.) No T Top.
9.) No trailer.

This would be my first SeaCraft. I have been looking for a while. I have made an offer subject to a hull inspection and motor check. Any insight or advice? Also, it is hard to determine the value of an old Seacraft like this. Thank you for your help and advice.