Just do not fall into the "you will make money" trap. Everybody else makes money.
you will just defray costs.

People will ABUSE your boat, if you are okay with that....the better the boat, the more they pay for the "privilege"

The charter company will FIGHT your requests for a checkout captain for ALL charters.

If the boat is returned broken by a charterer, you will be the first person they try to collect from, unless it is brazenly damaged.