Theres an old saying " 4WD will get you stuck where your not dumb enough to go on 2WD." Horsemen are infamous for going off on quick rides and getting into trouble. I've done it myself. Every horseman should have a accessable whistle and one hand opening folder. A PSK with some equestrian items is not a bad idea either. I pack chicago screws ( infamous for backiing out and disabling bridles) Bute ( equestrian pain meds. If a DVM will be accessable it's better to forego giving, as it masks vital readings.And NO people shouldn't take it.) an EASYBOOT, a rubber slipper that protects a hoof should a shoe get thrown on the trail, and a nice big woolen blanket tied off to the cantle. Horses can be remarkably tough and paradoxically fragile. If you get in a wreck that blanket can save a horse from trauma. They are also relatively fireproof and dont make scary noises like a space blanket or plastic tarp. Good Job!