Welcome from down on the south coast in sunny (ha ha) Hampshire.
Claybord is my fave non automotive surface, but it sure ain't cheap. All my suppliers are on line too. The nearest shop to me is in Dorset, but they don't carry the products I use.
There's a great bunch here, a worldwide family, and everything you didn't know you needed to know. Post up a few pics of your work, no trolls here, though maybe the occasional daft pixie