Hmm, I like the idea. I will be having vents in the front and rear quarters, so I'll wait till I've designed them and maybe have the "in fill" piece in the same design.
I do like a man with a plan, especially when it is a good oneYou will notice that the tube frame has some rust forming. This goes back to the day I moved workshops. It was throwing it down!
I plan to get the tubular frame blasted and painted once I have finished welding on brackets etc.