"K"
My Daughter is also an "only", I am trying to raise her as well as possible (I'm 43, she is 10). Roger clearly instilled "something" in his girl...Take your time with his estate, these physical things can have an emotional/physical connection with you....Your well being and memories of your father will always be more important than the "stuff", even if you need the money (I don't know your situation)....
There are many folks here that are salt of the earth and will give you top dollar (dericdesmond is one), you can always consign with someone like "arizonacustomknives", or Ebay...maybe place an ad here with a pie in the sky amount... I'm not an Interested buyer, but IM me if you'd like some advice.