We're going with a dozen for the first production run. It's going to take about a month to turn them out. I just ordered all the O ring gaskets, and am looking for the proper mounting hardware to complete the kits. I added up the R&D costs of designing, dyno testing, machining, mounting hardware, gaskets, and shipping costs and will be offering the spacers for $225
including free shipping to the lower 48 states. The design will be just like this except it will be made out of exactly the same black material as your intake manifold.
I'll keep you updated on the production progress including pictures, and when all the parts are assembled into kits and ready to ship... only then will they be offered for sale on a first come first served basis. This way when you order, I can send it out immediately and you'll receive it in just a few days from the time you paid for it.