The cab should reach a point where it "tips over" so that you have to pump it back to lower. This prevents it from dropping on you inadvertently. It is possible that the oversize cab may not lift far enough for this to happen.
We saw these vehicles all over Chile/Patigonia/Argentina They may allow Bolivia.
You will get no strength from the wool. It is a viable option for residential building, or even a van where strength is not needed.
A foam core composite panel is very strong, if you are building a shell, foam core is the way to go.
Stick framing and filling in the voids with insulation will...
The pneumatics on all these trucks are different. Our hose coupling was on the passenger side. You can pump air into the tank with compressor and a double male fitting. Caging the rear brakes is the more typical way to to release the brakes for towing.
Keep cool,don't panic. As long as everyone is safe it can all be solved. Every American mechanic will run a mile at first. There is nothing complicated about these engines other than the 24 volt system. Most mechanics I have met have drooled over the Mercedes engine.
Neutral does not matter...
Batteries new? before or after shipping? if before shipping it may have sat weeks with a small load killing your new batteries. Check cable connections again. The starter is in a tough place to access below the turbo(my replacement starter took a week from Germany) . Best bet is get a tow start...
1. It is adding coolant hose and radiators, not particularly failure prone when correctly installed.
3. When living full time in a vehicle you keep the habitat heated all the time when it is cold. Our small wet bath with a large wall radiator/towel bar heated up quite fast, pure luxury!