Tim, yes these prices are only for the adapters. The problem all comes down to constructing the large ring for the front adapter, if not for that they would be far less costly. Each ring would be made from stock and milled to basically original size and the material cost is the issue. One thing to consider is a catalog posted on Fordcollector.com shows that in 1967 the same adapters were selling for just over $100.00 so what would people be willing to pay for something that currently doesn't exist?