Hi Tim, you can just watch this thread for updates on this project. I'll be posting here when the intake adapters become available.
As far as gaskets, standard FE and 351C gaskets will work for most of the applications. If there is a specific application that requires a custom gasket, I will make the gasket available also. I've had good luck getting custom intake gaskets made at Cometic, so I would probably go that route.
In terms of the raw castings, I may do something like a partially machined version, where the intake faces are machined but the port openings are left as cast, to allow the user to do whatever they want with the ports. I suppose I could offer a completely unmachined version, but I think that would be a lot of work for somebody to start from scratch, and they would probably end up duplicating a lot of the machining that I would end up doing anyway. But I can certainly look at those kinds of requirements on a case by case basis.