How to convince my mom to be the bank

[Garrett F Anderson]

I have about $17,000 in student loans at about 10% interest rate (one is fixed and other is adjustable but at the moment they are around the same %).  My mom has enough equity in her home that she could take out a loan of that amount but at an interest rate around 4.5%.  I told her that if she did this I would pay her back at an interest rate of like 6-7%.

This has 2 benefits: she is making money and I am saving money by paying at a lower interest rate & I am paying her instead of the bank. So:

1) Is this a good idea?

2) If so, how can I convince her that this is a smart idea?  She seemed weary about it when I first brought it up...

Thank you for your time!