You did back in 2011 in your 'Alternative Postwar Royal Navy', a Type 82 Bristol class nuclear destroyer that had a longrange version of the Sea Dart fitted with a large rocket booster and a special Sub Dart, a bit like a British version of the ASROC - it would be cool to see them in this soldier scale if you bothered to draw them too.
That is a blast from the past!
Yes I'd envision a Sea Dart LR having a double-length Chow booster. The Dart ASROC is perhaps a bit optimistic on length but I could play around and see if its feasible.