i made a troll reply to this. and half way through read over your post again only to realize i had just trolled myself.
What were you going to type originally?
I am a saxophone player, and also repair saxes and other instruments...under $70......no way, at least not something that he will actually be able to play. You might find something in that price range, but finding one at that price that actually works will be a challenge. You could always rent something for a while at a local music store, they sometimes do rent to own, and they can be good instruments. Good luck hunting!