Tho the transfer fee is low the problem would be his wages.I dont believe he'll accept anything less than 4m.We'd have to make him one of our highest earners.He's on a pretty good payroll at united.
Nani would be a no-brainer at 8m pounds. He is an attacking winger which would perfectly suit a 433 or 4231. His characteristics are also good to play as a support striker or a player behind the striker in a 3511.
Sign him. 8m pounds for NANI!!! (he has 1 year left on his contract). No brainer - you won't get better wingers for that price that I can assure you.
It would indeed be a 'no brainer' if 10m was all that had to be paid.
With there still being the small matter of his wages (the size of those being part of why he is available for 10m), he still needs to be someone that Juve really want and would view as a pretty important player.
No point in taking on a winger with big wages if you only plan to play 4-3-3 once every so often.