I believe you are next in line for the Discovery Channel's Homestead programs. Gutsy. I envy you, but at my age ... not any more ! It is fairly surprising that going from Nebraska at maybe 3000 ft or so to MT at 5 or 6000 ft makes much difference, esp. with a turbocharged diesel. With direct injection you got the fuel and with turbo charging one would think that overcomes any marginal compression to cause combustion. I call it strange BUT if Massey is commiserating with you then obviously their software is tuned to some degree for altitude (e.g. air pressure) changes. Very interesting.
About your internet service -- do you have cell phone? If so you might want to try using the wi-fi hotspot capability of your cell phone feeding a laptop for internet purposes. Then there is recharging ....I assume you use a generator. Good luck and keep the info coming !