Try and see if you can make your study hours coinside with other chapter activities....that way, you are already on campus. It sounds difficult to impliment this plan on a commuter campus.
Otherwise, good luck. To me, it sounds like your scholarship chair has a good plan. The job situation sounds sticky; as far as club/activity meetings go, they might have to be sacrificed. If you have a certain number of activities you have to be in b/c of your GLO, then explain to your scholarship and activities chair that you just cannot give 100% to both.