I'm doubtful this is true but if it were and we'd land Kante, I'd be ecstatic.
Money shouldn't be a problem if we were ready to spend 100m on Girezmann. Lenglet and Arthur will be covered by Paulinho + fodder money and we'd have the 100 still available, theoretically, maybe even more with more deadwood out the door.
It would give us so much flexibility in midfield. We could play 4 4 2, we could play 4 2 3 1 and even the 4 3 3 without much worries for the defensive side. Not to mention the depth in quality would be huge. Hell, with the amount of midfielders we could also try 4 3 1 2 in some of the matches for more solidity.
Something like: back four - Kante Busi Rakitic/Arthur - Cout - Messi Suarez. It's a narrow formation though and we'd need the fullbacks to do a great job of stretching the pitch. In any case, it can be done.