for your consideration:
PLBs and Satellite Messengers: How to Choose
Results for "first aid" at REI
Results for "survival kits" at REI
I'm not suggesting that all these fit you or your region, but if you're solo in "out of the way" places, you need to be able to respond, independently.
Hikers have figured out a lot of this. Study them.
Be able to deal with injury and environment.
Ensure that people know, roughly, where you've gone and when you should re-appear.
Be able to deal with being lost, without electronics.
Be able to deal with basic mechanicals when you can, be ready to walk when you can't.