Well you are correct there are no active admins, but there is some sort of a community. I suggest you start discussing with each other and decide on one or two users that should become the admins. Thn those users can file an adoption request - see Help:Adopting_a_community
Just to make sure it is clear, this is a place to get help from peers. There is nothing we can do about promoting users on other wikis. Also, it makes no sense for users to be able to "re-promote" themselves. If that were the case, what would stop them from just promoting themselves the first time around?