Your idea has a few basic flaws, but the concept of building a truck away from known problems is good.
A.)The starting circuit, i.e. battery, solenoid, starter, is perhaps the least problematic electrical system of the vehicle.
B.) Diesels are compression ignition, and, as such, have compression ratios considerably higher than spark ignition gasoline engine. Even single cylinder diesels have a compression release to allow handcranking.
C.) Diesel fuel ignition is very temperature related. You will find that the colder the outside temp (and cylinder temp), the more revs it's going to take before it fires. Using aids such as ether is OK on many diesels, but is generally known for preignition. You do not want to be on the other end of a handcrank when that happens.
Only on the lightest duty of diesels will you see a starter motor of similar size to the one on a gas engine of equal displacement. Almost always, the starter is larger, to resist kickback from predetonation when cranking (apart from the obvious that the compression is so much higher, the starter needs to be a higher HP.)
Bump starting a diesel in any gear below 3rd is a great way to snap an input shaft, or layshaft in a gearbox.
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