If you legitimately use those items in your business then yes, you can write off the portion you use for business. But how to you use and RV, two motorcycles, and a Ferrari in a business? I guess it could be done but I doubt it.
Also if you are writing off those things in your business and you also use those things for personal use, and you aren't breaking the law, then you are backing out that personal use portion. So since Mr. Sausage King is also living in his RV, that is personal use and not business use.