Save me from Snake Bites

I had an idea watching the history channel about India's and Central Americas snake bite problems.
The villagers and farmer's are often far away from a clinic to get their serum of anti snake venom. This to me is a problem that could be solved with a pouch or with a snake kit that could be carried on a person when traveling. Considering that anti snake venom may need to be refrigerated it could be possible to create a cooling system for the kit. And considering that people need to apply to proper dosages by their weight a dial separating the proper dosage depending on the persons weight could be created to turn the dial to the persons weight and then the dosage would be automatically measured for that person.
What I am suggesting is that a person could carry a kit with them with the anti snake venoms for all the varieties of snakes in their region so they could be protected from bites and encounters. The kit would be designed with all the different varieties of anti snake venom for their region and be equipped with pictures on each vial of the snake encountered and be given a scroll that can be rolled up around the vial by a dial and pulled out and read to figured out what to expect from the snakes. Then the weight of the person bite and the type of snake could be decided and be administered to the victim of the snake bite.
The marketing would be handed to merchants to distribute the venom kits to villagers and farmers that come into town and at first I suspect that the costs would be prohibited but if they were some how allowed to refill their serum kits with orders and an increase in the demand for anti venom was created and the manufacturing of the anti venom was supported by such purchases then wee could create an economic reaction to increase supply lower costs and meet the demand.