Customize and Download this "Bill Of Sale With Payment Plan". Vehicle Payment Plan Agreement.A vehicle payment plan agreement is a contract between a buyer and seller of a vehicle that agrees to installment payments. Selling or transferring ownership of a car, boat or other item of personal property? Easily create, print, and download a Bill of Sale in minutes. Download newest version of Alameda County Form • Modify, complete, and send online • Large list of various forms and templates. ACI Customer Service can help you: Start service for a property in Castro Valley. Report a missed pick-up. About liens A lien is like a public mark put on property that shows up in government files.