I need an add-on that would implement a system of user notes for all forum members. The aim of the system is to let users to keep a short custom note about any other user. The best implementation of this system that I know of is in the LiveJournal social network engine. vBulletin has a sort of user notes system but it is not very comfortable in use. The one I need should be simple and easy to use - 1 or 2 clicks to set/change the note for a user, see the current note on hover.
Please let me know how much would it cost and how long will it take. I prefer to pay via Skrill, but can also pay via PayPal.