That's a pretty big Bismarck!
Looks like there are Arado's available for it that aren't terribly expensive if you search 1/200 Arado. You can even find some Fairey Swordfish to go with it.
I'd be upset if I paid as much as you probably did for that model, but I'd still probably get myself some Arados. Did you shell out for the brass detail kit too? Looks like those are even more expensive than the original model.