The problem with being totally understocked, is that customers try repeated times to purchase, and when they cant get the product, they give up meaning you dont get their dollar. Undersupply is just as bad as over supply. Its not smart to have nowhere near the product to fullfil orders.
I dont think so if people really want one they will be prepared to wait, as they have seen the footage of how great the item is.
The other thing to consider is, as these guys are only starting out, I would think constructing the boards etc, would be fairly hands on labour intensive as I'm sure they are doing most of the work themselves or at least overseeing the process. I'm sure they still have day jobs too as this venture will never make them rich, they are after all, hobbists at the end of the day, just a bit smarter than some of us