In the MVP, we do not need any election mechanism. Let the admins appoint moderators.
On Stack Overflow it took about two and a half years until moderators started being elected rather than appointed, and even today new sites don’t get elections for a while. I do think we should elect moderators, at least per-site moderators (“low-level moderators”), perhaps not “super-moderators” with PII access. But we don’t need to do it on day one, and it would be meaningless to do it until the number of users has reached a critical mass. We wouldn’t block the launch of the site due to a lack of a moderator election system, so moderator election is not part of the MVP.