... an update on the remote start / lock / unlojck / window up - I bit the bullet and obtained one of the handheld programmers which allows much greater flexibility in programming the remote start and IMHO it is definitely worth it. Remote start systems are generally targeted for gasoline powered cars, and but the programmer makes it much easier to adapt to the longer cranking / harder starting diesels (especially cold starts).
I have it now set to turn ignition on for 30 seconds (to allow glow plugs) and then crank for up to 4 seconds (while looking for a voltage spike over 0.5 seconds that will indicate engine start), then rinse-and-repeat up to 3 times.
Since I don't have a pass-through, the idea of being able to start the truck while I am still in the camper and get it all nice and warmed up is certainly appealing. Also, the more practical aspect of setting it to automatically start every 3 hours during extreme cold is also nice.