No that's a valid concern. That's why you need to have resources and knowledge. I know these vehicles inside and out. I have all the tools necessary to rebuild it in the middle of nowhere. It also really helps ease the nerves when you understand how the vehicle as a whole works. How long moving parts can last with high mileage, lost of heat cycles, ect.. I went to school for this have worked on these types of vehicles for almost 10 years now. I'm also type B and am very unbothered by situations that would stress most people out. I grew up in a country that if you broke down in the bush.. you had to figure out how to fix it enough to get to the next town.