I am perplex that the en.wikibooks does not have a big enough base of editors to vote on a check user... I am quite lazy, so I will not go to the stats page to check. But can you roughly say how many active editors per month the project currently has ? How many very active editors per month ?
The last full stats are from November, at which time the project had 263 users making at least 5 edits a month and 22 making 100 or more. (http://stats.wikimedia.org/wikibooks/EN/TablesWikipediaEN.htm)
English Wikibooks currently has 38 admins and 5 bureaucrats. However, only 14 of those admins have been active in the last month and ten of them haven't edited this year.
Angela.