The mobility score she needs is a 31AA, so she only has to average high 7s on each event at a sanctioned L6 meet. Now, if the coach is also looking at her doing states as a L6, then she has to get your state qualifying score which in many states is higher than the USAG mobility score. Bars seem to be the biggest challenge at L6 with the clear hip and all the correct angles that must be hit in the tap swings.
Good luck to your dd and let us know how she does!