Domain selling agreement/contract

Hey all, I'm really wanting to sell some of my domain names. I don't know what I will end up selling for but the one thing holding me back is that I want a contract with the buyer to agree on the 'obvious' associated with buying a domain name. Additionally, previous I have had products associated with the domain name, within my ebook products I link to the domain name I'm wanting to sell, I want to ensure the new owner has agreed, legally, they understand they have no rights for/to anything previously associated with the domain.

I would go to a laywer, but I've had quotes and I would need to sell my domains for a lot of money to even break even.

I've looked online, but I'm wondering if anyone would be willing to share a contract they use for the sale of simple domains which I could use to help me get started, and save costs in getting something together.

Thanks in advance.