Theta, the problem wasn't really money but production itself.
You have to understand that truely military plants were few and couldn't sustain a very high rate of production. Beside these there were many little plants, each one making a part of the final product. And there were many new processes to implement because most of those factories were initially civil plants (for exemple making cars, bicycles or cans) that were converted for military production. This is not something you do in a few weeks, sometimes production was screwed for many months before there were actually results,
slow results.
That's how happened weird situations such as shortages of guns, tanks without turrets or (the worst of all)
thousands of brand new aircrafts stuck on the ground because they lacked radios or weren't certified for flight.
BTW, you know, the FCM36 was really modern for its time but its fighting efficiency wasn't much higher than a R35. It was still a light tank with a short barrel 37mm gun.
edit: forgot a letter, STUCK not suck.