Learn how to sell a travel trailer in Texas with our comprehensive RV Bill of Sale guide. Get step-by-step instructions, key documents, and FAQs.The form consists of the significant vehicle, buyer, seller, and sale data, along with affirming signatures from both parties. A completed Application for Texas Title and or Registration (Form 130-U); Applicable fees. How do I fill this out? Get information about motor vehicle registration and title transactions. Tarrant County residents can renew vehicle registration. The Texas bill of sale form verifies the elemental facts of the sale of personal property in exchange for a predetermined compensatory amount. A Recreational Vehicle (RV) Bill of Sale is required anytime an RV is sold or transferred between a seller and a buyer.