Something about #2:
Year about 1930
front lights fiat or anyway similar
Right hand drive (common in Italy too for trucks)
Probably 4c, I suppose not under 1100, not over 1500
Front fender quite elegant, perhaps coming from a saloon (I mean not properly designed for a truck)
Very particular front grill, different from all Fiat, Lancia, Ceirano, OM, Bianchi I know;
So, as we have two other German trucks, is it possible this is not a not Italian vehicle?