Forman and field have arbroath smokies, sold traditionally by the pair (two whole smoked haddock tied together at the tail. You can buy online at

www.formanandfield.com

When it comes to fresh fish online your options are pretty vast these days. I would be inclined to go for a busy, well established site if buying something as perishable as fish. Able and cole are recommended by several of my friends who buy their organic veg boxes. I haven't used them for fish but I was impressed to see sustainable options such as pollack and whiting on offer when researching this answer for you. Good luck with your catch, Loon.