How much should I budget for a Nashville trip?

My mom and I are going down there for 2 nights for a concert. The tickets, parking pass, and hotel are all paid for. Nashville is 4 hours away from us and our hotel is 10 minutes away from the parking place. My mom has no money as she’s waiting to start getting disability and will pay me her back when she begins to get it. Since I’m paying for both I don’t see us buying any crazy expensive food, probably sticking to fast food and little mom and pop places. We don’t plan to shop either, but definitely drink. What would you think would be a good estimate of how much we’ll need
How much should I budget for a Nashville trip?
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