I think you'd likely be able to sell them but don't forget you'd need to add shipping prices to the original cost, so, don't know how convenient it would be for someone trying to buy one. I for myself would even make one out of tapaware(I think that's how they're called). Then would just make some holes with a hot piece of metal and voila! lol Seriously though.
And no, the plexiglass is not required at all. Just looks fancy.
lol It all makes sense, you should check them out, would probably be easier for you, you never know.