This is Matt from China. As you mentioned the two saxes. they are all used. So, there must be something wrong with them( big or small). And the price: $300 and $500. It is expensive for used sax.
I have a sax store in China. I export sax to student learners in USA. Do you know Chamberlin in Idaho? Robert in California? and George Jefferson? They are all my customers. Chamberlin is also a student beginner.
$490 i can send you a absolute new sax for your beloved daughter. Contact me,and you can contact them to confrim my information.
Looking forward your early reply and I can help you.