OK Teasing over.
Evenheat will now sell this to you. It's almost as pictured - either the Evenheat MK I which holds 4 blades - and fits nicely in the new KH 120V ovens, or the Evenheat MK II which holds 6 blades and fits in the standard size 220V offerings.
I've used these and can't overstate what a joy they are. I have a couple prototypes in stock, and more on the way, but call Mike Kelly at EvenHeat. This is his baby and he has (again) bent over backwards for your business.
Rob!