My best advice is, yes, your only plan might be “to improvise” (Daft Punk reference there). But I say with most sincerity— don’t just plan, strategize!
That means, have a ‘Plan B’ at every turn! I would be concerned for your health, and your safety #1! Also, not that I’ve personally done anything like this, but..
I would suggest keep some sort of power with you. A local company here in Pittsburgh has what are called “Sole Power”, which you might be able to benefit from. http://www.kickstarter.com/projects/764467377/solepower-power-by-walking-0
Also— check out Goal Zero’s products. http://www.goalzero.com/ Very GOOD stuff. :)
Best of wishes! LOSE YOURself to find */Him/*, and what He wants for you!
Then spread the “GOOD news”!!