To me touring budget is about averaging your costs.

$60 per day = $420 per week:

• motel: $60 x 2 = $120
• campsite: $25 x 5 = $125
• food: $25 x 7 = $175

That's doable but you'll need to limit your dining to one moderate priced restaurant a day.
You can also buy prepared food at most super markets.