2000ish Gold, but managable if I'm ganking properly.
So hype to try the new Jungle, will prob. go Xin to be on the safe side. 30 Armor Pen with Youmuu will be nasty by mid and late game X3
I can't find my calc sheet, but every single one of those items was very gold efficient, some of the best in the game. Riot basically took the old gold bonus from S4 and split it between the gold efficiency in the enhancements and in the small jungle monsters.