Where did Custard train? That'd be the first place I'd try to get into. (edit....I've remembered.......The Barnsley Workshop)
I wish you well, Cookiemonster. I hope this turns out well for you. I'm heading down a comparable path, as I've a wood-based business in mind for my retirement. My only words of wisdom for you are that if you set up your own business, it's selling that makes or breaks it. It's no use having a showroom/ shed full of gorgeous furniture, for instance. It's about how long long your order book is. Making the stuff is comparatively easy.
Suggestions for starting again. is worth reading, particularly post 3.