Originally Posted by
Dogtra
EMT but don't use daily? Are you a volunteer Firefighter/EMT then?
Anyways, back on topic, you have a good understanding for what protocol to follow if a snake bite happens. Educate yourself in snake species, paying close attention to the venomous ones that could be around where you're hiking. Venomous or not I would suggest carrying him out ASAP. As for First Aid items - most of what you need can be torn from your clothing, pack, and other gear.
Also consider finding a trainer that can help you use an avoidance correction on your JRT. If you find the right one and he (or you) have connections with someone with snakes - You can teach your JRT to avoid them outright and make sure he never tries to confront a snake in the future. Trust me, it works.
Hope that is of some use.