He's usually pretty busy and just pops on the forums now and again. leave him a PM on there and he will get back to you. He doesn't generally keep a stock though, they are made to order.
Have you asked Griff if he has any?
What Pawere gains have you had so far , I often wander how theys kits can werk wen you are lousing the presherisacion of the ram air to the air box , are they all nois and no gain !
How would it seal if theirs no airbox bottom ? Put the seal stuff around the edges of the Rene plate ?