Best MILC for Shooting Figure Skating?

Yes, I do!

However, the cameras I am looking at now, used d300, used d700, refurbished d7000, are all within the budget.

The lenses are available used as well. She does not need to start out with the best ones in order to learn. I have received many excellent suggestions at very good prices.

She can use a monopod to help with the weight. This will not be used as an every day camera, so she won't be lugging it around.

It will take quite a while for her to learn to take consistently good fast action shots. The expectation of this kit is to be good enough for her to learn, but upgradable later if/when she is ready.