Inherited my fathers Don Lozier show knife and have questions

Hello all, im sorry if i am doing this wrong or posting in the wrong place or whatever. My father was an avid knife collector for years. He had one Don Lozier knife that i always loved and he willed it to me. It is an absolutley perfect i think maybe called"bowie?" knife. never used, never sharpened. it says Don Lozier handmade purist, and the art work inlay is signed by j.warinsky(spelled wrong im sure). I know that Don made this to my fathers exact specs about 15 years ago and Don also had a perfect custom sheath made for the knife. The knife has been on display in a glass cabinet for years. My father let slip once that he could have bought a nice car for the cost of having it made and i know the sheath was around 2k. I had never planned on selling it, but cash is needed. HOW DO I GET THIS CUSTOM KNIFE APPRAISED? HOW DO I SELL IT? Stupid questions im sure for people in "the know" but im not one of them!! any advise is appreciated. I cant even figure out how to post a pic!!!