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-buy some good, hardwearing clothing(most likely military gear). Spend your money on warm clothing and sleeping bag and tarp, etc.
-Learn to look in bins for food. Supermarkets and shops throw out lots of waste food that is perfectly fine to eat, search on how to look properly, etc
-IF you have reasonable skills you could probably live in the woods for a while. Good with an air rifle or bow? A lot of your food source could come from small game.
If you're sticking with your nomadic bike idea keep in mind that you'll never have a permanent camp and they won't be as comfortable as a camp you have been in for a long time.
My advice. Go to a forest or woodland, close to a town but not too close, set up a tarp and live there. Make sure you're hidden. Hunt, forage and look in bins for food and get water from a stream and you're set. Use remaining money to get gym membership and have showers so you don't look like a dirty woodsman when you go to job interviews.