Rattlesnake bite is VERY expensive.
The serum costs like $5,000 for a pop and you need on average about 20 of them.
So an average rattlesnake bite set you back like $100,000 or so.
You can buy cheap kit on Amazon, but it does not really work!
Do NOT rely on those!
Correct. The only medical tool you can use for rattlesnake (Crotalus) envenomization is only made by CROFAB. They will only sell to research facilities, "milking" centers, zoos, and hospitals.
The only individuals that they sell to are registered with one of the above and are usually either head zoo keeper, zoologist, herpetologist, trauma doctor, er doctor, etc. The last envenomization in AR was a large Timber rattlesnake who did NOT rattle, bit a landscaper. Had to have 20 or so vials......$400,000.00 hospital bill. Survived but had to have a fasciotomy (don't image search that).
Crofab vials are typically $10-20,000.00 per vial nowadays. The only thing more expensive is in South Africa for Mamba, Boomslang, and Russell viper antivenin. (Maybe Fer De Lance and Bushmaster in Brazil....also sold by Crofab).
Interestingly enough, go through the Crofab link above and they'll walk you through the clinical snakebite treatment protocol.