Since your knowledge base is zero,I would suggest sitting down for 36 hours and watch you tube video's.
What is your tolerance to disgusting? Sponge baths for weeks at a time and compost/cassette toilets will test that to the max!
Carrying ample water is the biggest logistical problem.
A travel trailer would probably be the most economical to start with.
Why are you starting this endeavor? Financial collapse? Broken marriage, running from the law, or just a desire to go?
The only place for extensive boondocking is in the West. You have a ton of questions which is good, doing your diligence, but it would be much easier to help if you laid out a basic synopsis of your reasons, your goal and your expectations.
One last thing,and I don't mean to be unsympathetic, BUT, if this a hedge against homelessness, please disavow yourself of the notion immediately. Stay where you are at and take advantage of any and all charitable and governmental services designed to better your situation. The last thing the RV community needs is another broken down camper, festooned with blue tarps and a pitbull tied to the bumper!
