Give em the price and have at it.
We just replaced about 300 ballasts at a warehouse.
At the same time the fixtures where reconfigured from 2-F96T12s with a magnetic ballast to 4-F32T8s with electronic ballasts.
Orsam Sylvania provided the retrofit kits, sockets, brackets, lamps and ballasts.
Reduced energy consumption and more lumens made a happy customer.