LinkThe seller doesn't specify the model so anyone considering it should definitely ask questions to confirm that it's a buckling spring one. 1391406 is the normal buckling spring, two part keycap and removable cable model. Clickykeyboards also lists 1395985 as having the same characteristics but doesn't mention any differences. I don't know the model numbers for any other UK Model Ms.
Delivery is £10 and the starting bid is 99p, but that's likely to go up.