Well based on the fact that I ate it not long ago in an Austrian restaurant in Abergwyngregyn, and that there are 2 suppliers of boar meat in South Wales....... I'd say you are being unduely dismissive and I don't welcome your unqualified answers. Thanks all the same.
Most of the Farmers' Markets I have been to usually have Wild Boar available. OK, I haven't been to any in Wales but I still think you would be OK.
Even if they didn't happen to have any on the day (some producers alternate round the markets) ask one of the general Prok producers and they could probably point you in the correct direction.