Single enclosed car trailer cargo insurance ?

[cooter]

I have a 3/4 ton truck with a 24 ft. enclosed car trailer. Most of the time I use it to go get antique cars that I have bought. What type of insurance would I need if I delivered those same antique cars to the buyer when I sell the car? Or if someone wanted to hire me to deliver their single car to transport it?

Thanks and yes I'm clueless and that's why I'm asking on here. I'm not trying to do anything illegal just want to cover my bases or just not do it.

[SHO-TYME]

If you're hauling FOR HIRE, you'll need $1,000,000 liability + cargo insurance, DOT authority, vehicles annually inspected, medical card, log books, etc.

For more info go here. www.autoexpeditor.com

To do it part time isn't feasible.