Mentioned these guys before but I've used several of these with cracking results for whisky usually with some sherry or port in first
https://www.thebarrelmakers.co.uk/depar ... wine_vats/They're near Gateshead and he is often open to cash offers if you call in person
It's a fascinating place with loads of old barrels in various states of restoration and conversion with a blacksmith on site and heady aromas from past spirits