Depending on what types of medications you take it might not be as expensive as you think. The "generic list" at most major pharmacies have lots of meds for $4 for a 30 day supply and $10 for a 90 day supply. You can go to Kroger's website and their pharmacy section has a listing of all drugs on the list (and it's quite extensive).
Good luck with the job.....it's not the end of the day yet so maybe they'll still call.