Finding a period clawfoot tub is realatively easy. You can find them online all the time as people 'modernize' their bathrooms and get rid of that old tub. Salvage shops always have them in stock but often without hardware or if it has any it need replating The problem has often been finding period fixtures to go with them.
http://www.sunrisespecialty.com/ , has been around for many years and offers a wide selection of old style hardware to finish your clawfoot project. Their catalog is availale on line and seems to have most everything you need to to complete your project.
Coming soon we will be showing you how to restore a clawfoot tub, AND, how to paint and stencil the exterior to make it a one of a kind showstopper.