The cord wood idea is a great option to go with
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I think I would get the camper, and begin building a better shelter using methods 3/4. You will have an immediate usable, portable shelter, and will not be in a rush to complete the more permanent shelter. After the final shelter is complete, you can sell the camper or keep is as a mobile bug out shelter.
<iframe width="420" height="315" src="http://www.youtube.com/embed/l8b80dXMgME" frameborder="0" allowfullscreen></iframe>