It seems clear that the question boils down to this:
Given the following setup
Please provide ideas to justify it
I see no way to evaluate results other than the OP's preferences. The conditions specified are not "too broad" in the strong sense, but they're wide enough that a great many equally valid answers are possible.
It is idea generation in a technical sense, but it's a single specific problem rather than a large vague idea which appears to be more acceptable to the community. I'd say "opinion based" if I was forced to pin it down to a reason to close, but I still like it as a question.