It's approximately 900 miles to get to the park I want. I took the average gas mileage of my car, which is 30 mpg, to figure out how much gas I will need. Then I multiplied that by a gross overestimation of gas prices.
900 miles / 30 mpg = 30 gallons
30 gallons x $4.50 = $135.00
Now since it will be a lot of highway driving I expect to get slightly better gas mileage than 30, but a conservative estimate is better than the actual figure. The price of gas probably won't be that high but it's better in this case to overestimate. There will be a few toll roads, plus I'll want to get a few snacks along the way so I'm just going to make expenses an even $200. I probably wont use all of that budget and that's fine.
I decided that I want to pick up some new hiking boots as well, but I need to try on shoes before I buy so I don't really have any picked out. $150.
Backpacks are the same way, I need to try them before I buy one. $200.
I already know what tent I want: the Eureka Solitare. $90
Stove and fuel: $50
I don't need a knife, I don't need a compass. I'm considering getting a small hatchet. I also need a bear bag as well as some rope. A headlamp would also be nice. Mess kit. $120
So right now you add all that up it comes to $830. And that's a relatively high estimate, especially on the back pack, tent, and boots since Amazon generally has everything cheaper and I get free shipping with prime. That's if whichever store I go to doesn't price match it. I would rather buy from the actual store but money is money and I've yet to plan meals for this trip. I'm figuring that will probably be around $50, but that's is an extremely rough estimate.