I've done the same thing and the problem is that I'm running out of kids.Before I'd take next to nothing for them, I'd find a deserving young kid and give the 10/22 to them.
If you don't want the risk of dealing with strangers, you have to pay someone to do it for you. If you want to have the full value of the merchandise, you have to get rid of the middle man. But you can't have both.
Probably not. You will likely get 1/2 of resale value. I offer people 60% of resale value when I buy guns of known value.expect to get half of what they sell for new.