Tom I can see that, sounds logical.
I just got off the phone with Ramair Restoration, they scan the donor manifold digitally now so there is no harm to the original what so ever. He said normal tooling starting type price is $12,000 but that is for several thousand casting type molds. Since RAV would be only a few dozen at best, the mold material may be less expensive. Again this is just rough guesstimate on Paul's part, but he will do it. He also said he has a set of the 303 manifolds and acted surprised when I told him what they where. HAHA Everyone should read Yenko forum, then they would be up on this stuff.