Well, if the version you need is still legally on sale by any of the dealers then my feeling is that morally you should get it from the dealer. If, on the other hand, the version you need no longer is available then I guess no-one would be shooting you if you used this 'service' to get a replacement just to get your Amiga up and running again.
But no matter how, it remains a deep gray area, an area I wouldn't dare to dive into.
