Honestly I think thats a great idea, something to add though; assuming these are a bunch of loners, kittypets, and rogues coming together to build the clan, it would make for another side plot that some of the cats just simply believe there is such a thing as StarClan.
for example, imagine a stranger coming up to you one day and asking you to help them invest in a business; but the reason they are even creating a business is because a bunch of starry figures told them so. You'd probably think they'd be a little crazy lol.
Therefore, there is the possibility of getting a bunch of cats within the clan that StarClan cannot interact with, simply because they don't believe in them. (If you really wanted to make it interesting, assuming the cats getting called upon by starclan don't necessarily get all the hps, a leader or medic could even not believe in starclan. Hence the problem of not receiving dreams or getting nine lives)
Just throwing an idea out there. : )