Animal care while we are away

okay, I know this has been asked before, but I would like some help with ideas. We are going away for a week for Christmas and asked a neighbor kids to stop by and care for our animals, 6 sheep, 2 ducks, and some chickens. doesn't take much care, just letting chix out & throwing hay to sheep in morning and putting in chix and feeding all at night and of course water. he actually drives right by everyday as it is, so he doesn't have to go out of his way at all. I have no idea how much to pay him. I manage to do it all in about 30 minutes total. he can have all the eggs of course, although that i guess is more for his family. i just don't have any idea how much to pay him. :shrug: