I can assure you your gun is not a high grade Scott
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=271080231....the low quality of wood and the lack of engraving attests to that.
What does seem odd is the Premier grade forearm latch on a lower graded gun. As far as the full strapped pistol grip goes that's not that unusual.
I see where Kensal Rise estimated it's value at $7000.00.
As far as his estimation of value....I predict one of three things.
1...Hopefully you will find a true W&C Scott collector that thinks he can't live without the gun and pay you an astronomical price for it.
2...You are prepared to sit on the gun for an extended period of time waiting on the above.
Or #3....You will come to the reality that Kensal could be as much as $5800.00 too high.