do you get a w-2 (employee) or 1099-MISC (independent contractor)? if you get a w-2, unfortunately, current tax law bars the deduction for employee expenses. on the other hand, if you get a 1099-MISC your tax home must be determined. the following is from IRS PUB 463 https://www.irs.gov/pub/irs-pdf/p463.pdf
To determine whether you are traveling away from home, you must first determine the location of your tax home. Generally, your tax home is your regular place of business or post of duty, regardless of where you maintain your family home. It includes the entire city or general area in which your business or work is located. If you have more than one regular place of business, your tax home is your main place of
business. See Main place of business or work, later. If you don’t have a regular or a main place of
business because of the nature of your work, then your tax home may be the place where you
regularly live. See No main place of business or work, later.
it would seem your tax home is your camper. your tax home is wherever you work and you
can’t deduct travel expenses.
your situation seems to match up pretty well with an example for the outside salesperson in the PUB (page 3.)
Example 2. You are an outside salesperson with a sales territory covering several states. Your employer's main office is in Newark, but you don’t conduct any business there. Your work assignments are temporary, and you
have no way of knowing where your future assignments will be located. You have a room in your married sister's house in Dayton. You stay there for one or two weekends a year, but you do no work in the area. You don’t pay your sister for the use of the room. You are an itinerant and have no tax home.
