Seems like quite the contradiction here. You've clearly displayed that you have absolutely no knowledge of the basic husbandry requirements of the animals in question, not to mention safe handling techniques for apex predator crocodilians. A caiman may be a smaller animal but it is nothing to jump into sight unseen just because you like them. Any crocodilian is going to be financially very demanding to keep in the colder states.
If you're truly serious about keeping crocodilians, Look into Shawn Heflick's Crocodile University program that he does. Spend the roughly $1000 on the course and learn the proper husbandry, handling, and other fundamental aspects of keeping crododilians. Learn from the people who are truly qualified. I guarantee that will give you a much better insight on whether or not crocodilians are something you want to get into. As well as I'm sure it'll make any permitting process easier, having that hands on time with dedicated crocodilian keepers.