I'm in Montrose and have traps and a rifle if you want it shot? I have fen traps and humane, cage traps. The fenn traps need to be set in tunnels. They are hellish powerful and I've not set any of them in years but could dig them out as sounds like an emergency. I've trapped female stoats in my little humane traps, they work for weasels, again, not sure if I even know where they are. My larger cage trap was good for anything from a ferret to cat, caught a few ferrets in it she time. It's pretty bog standard, think called a rabbit cage trap.
If there's no one closer, and you want me to come down to Fife, I'll have to see if I can get granny to look after my oldest and I'll need your help with my 18months old. Let me know as I was going to see a guy about some apple trees over the weekend. Are you far from the Tay bridge?