Sorry if I missed it, but have you considered using the word «lIn»? This seems to be the sort of context that it was made for: One where there isn't a provider and a beneficiary, but a set of equal parties: «qo'vam wIlIn.»
You didn’t miss it, as I hadn’t mentioned it, but I chose not to use {lIn} because I wasn’t sure if it could be used with a simple subject (in this case, {maH}, as opposed to, e.g. {vay', latlh je}), and while neither {qo' wIlIn} nor {maHvaD qo' wIbon} quite captured what I was going for, {maHvaD qo' wIbon} seemed closer.