As someone who used to be a tape out engineer for a semi conductor company, perhaps I can shed some light on the costs that you are dismissing so lightly. When I used to send prototype data to the likes of IBM and TSMC it used to cost millions just to get a small batch of a couple of hundred chips. It is only when you move into large scale production that costs become realistic, do you think that the Amiga market can warrant such large scale production?
Even if the schematics were available I doubt that the libraries that tools like Cadence require to load the data are still avaiable.
