If you stay primarily on the west coast you can stretch that budget pretty far by staying in national forests. You can drive in and set up a tent anywhere for free for up to 3days before changing your camp site. You will pretty much have to buy food in bulk (think rice/beans/pasta) and some hard cheeses that won't need to be refrigerated... some soy sources of protein like TVP... Get a camp stove to cook on. Where you can't sleep in a forest you will have to stay in highway rest stops and the like. It's a pretty rough way to travel but it is fun if you don't mind getting grubby and being looked at funny.
Cities, hotels, etc... anything not camping will really cut into your budget. Not sure if you will really get 4 months out of that kind of money though. Shit happens and you are going to want a reprieve every once in a while.
If you stay primarily on the west coast you can stretch that budget pretty far by staying in national forests. You can drive in and set up a tent anywhere for free for up to 3days before changing your camp site. You will pretty much have to buy food in bulk (think rice/beans/pasta) and some hard cheeses that won't need to be refrigerated... some soy sources of protein like TVP... Get a camp stove to cook on. Where you can't sleep in a forest you will have to stay in highway rest stops and the like. It's a pretty rough way to travel but it is fun if you don't mind getting grubby and being looked at funny.
Cities, hotels, etc... anything not camping will really cut into your budget. Not sure if you will really get 4 months out of that kind of money though. Shit happens and you are going to want a reprieve every once in a while.