Zone buff

I recall plenty of threads here about books and their production time... I dont really want to add to that suggestion, have a different motivation.

Idea for new zone-buff / guide;
Administration-course guide - recipe to be received at reaching lvl 55 (wild guess)
Buff to be made in RPH;
cost: 200 herbs, 250 platinum ore, 250 barrels, 15 adamantium ore
effect: 20% speed increase for production in RPH, PH, Armoury & bookbinder.

Argumentation;
- Gives a moderate boost to book production which people have been asking for
- Also boosts other things in the queue that are clogging (mostly) rph
- Adresses a guide for some of the few buildings that do not have one yet
- Get rids of some collectibles and gives more reason for clicking them (My main argument)

++++1