This Scenario is unfortunately completely unrealistic historically and substantively. The mythical Polish cavalry charging at AC and MGs. Cavalry in 1939 used lances only during parades and ceremonial marches, not for fighting. This is how the Polish hussars fought, but in the 16th and 17th centuries...
    Polish cavalry moved on horseback, but ALWAYS fought on foot, like infantry. It was the German propaganda films made after September 1939 that depicted such a course of battles, which unfortunately became fixed in the memory of generations.
    VP for wagons? That's some kind of joke. How could a field kitchen be so important in a camp for interned Polish soldiers in Romania? The wagons would have been confiscated at the border, of course, like all equipment and armaments. The Poles would, of course, abandon these unneeded wagons and try to break through further on foot. What was important were the people, above all the officer cadre, who could have crossed the border and fought on, if they had succeeded in reaching France and England.