I'm getting ready to try to sell my street rod, and I'm not sure what I'm supposed to do with the money, from the IRS's point of view.

First off, I know cash is best, but what other forms of payment should I require? Certified check?

Secondly, any other transaction other than cash will require a bank. I expect they will ask some questions or even give me some tax forms when I show up with a 30K+ check.

What's the best way to handle this? Any tips or suggestions?