Ah, I see.
Intact females can be a bit of a pain. They can be hormonal and some are more territorial. It really can depend on the rabbit though as some are sweet and easy going. As far as the cancers go, it is better to get them spayed. You can try to save up some money to get it done and try calling other vets as well to get different prices. The cancer risks tend to be more for 5 years and up.
For males, not all will spray. I have 2 that don't spray. They do hump a fair bit though. Neutered males should not spray or really hump. They tend to be calmer when neutered, but are still energetic.
Since you are in Florida, I think there are some rescues that can help with the cost of spaying. Even if you have to drive a bit, it can still be much cheaper than what vets will charge you. Try contacting SlaveToABunny on here as I think she works with that sort of thing.