The general description would be to just post a prompt when you decide to - for me, it was once a week, but you may decide to change that - keeping up with tags and memories, etc.
If you two are agreeable to take it over, then I can put you on as maintainers this weekend sometime and take myself off.
Don't know if you would like to run the gundam_100 or not. If so, let me know whether you will be maintaining it alone or whether you will have a partner.