Brad, My thoughts and prayers to you and your family. I never met you or your Dad, but I read your accounts of him and I know he was a really great man and there will be a void in the family. Try to be strong for your Mom and the kids, it is what he would want.
Your memories of him will last forever, and that is one pretty 046 he had.
So sorry for your loss, I went through this several years back.
May his memory always be an inspiration to you and yours.
MustangMike