Knight 52 cal. disc extreme RMEF edition

I ask on the ask the pros board and they said to ask over here. My son has a Knight 52 cal. disc extreme he won in the calling contest, It is brand new never been shot the shiping oil is not cleaned off, It came with 3 different breches, camo stock, stainless steel barrel with XCR coating, What would this gun be worth since Knight just went out of buisness? He does not want to get into muzzleloading. He loves his Rem.XCR 7mm ultra mag he won last year too much!