The player is much more consistent than Vuci. And you're blowing the injury situation well out of proportion.
He missed one full year with a knee. Other than that, he's
started at least 26 matches for Fiorentina every season other than 2008-09, when he arrived at the club. He's played in 29, 0, 27, and 30 league matches the past 4 seasons (31, as of next weekend).
Look at the last two years. 27 starts the season after major knee surgery is a fine number. This year he's got 30 starts, despite the fact that Fiorentina rushed him back within a week after he got injured, so he could play against Milan... and, what a surprise, he aggravated his muscle injury.
I know you want to go all in for Ibarbo, but most of us would like to add some real quality to the attack.