I'll be the other guy. Hots take a special kind of crazy. I've had hots an can't in the current State I live in. For your first Hot , think Warm, a nice Local one. Copperheads (normal) are under $200 in NC. They are easy to learn an keep.
Now, the fun part, read your home owners policy! Ten to one Hots are forbidden just like six breeds of dogs without a rider. If you don't own your home don't keep hots, it's that simple. Now, go read up on Hot rooms. They have to be escape proof, $1k an up depending on construction.
With Hots it's not if your struck, it's when. Many a seasoned keeper has been struck, some can be found on youtube.
Check with your local hospital about treatments an if they treat or just stabilize an ship you out. They are use to copperheads, water moccasins (cottonmouth) an rattlebrats. Anything else you better be near a large hospital an airport.
Any Vets in your area take Hots as clients?
So, you bought your first Hot an it doesn't work out. Now what? You can't just let it go an buyers are few an far. Few people will buy a Hot from backyard breeder let alone somebodies problem child.
If you have your heart set on one of your listed Vipers. Take your time! Try to find keepers in your area you can be mentored by. Or volunteer at the Zoo that keeps hots.
Good luck!