Very basic overview
Arrivals (current): 160m
Sales (current): 37m
Expected sales: Pogba 110m, Zaza 25m, Pereyra 15m, Lemina (?) 20m, Hernanes 5m
Sales (Future): 212m
If all of those sales are made, another 100m (20m Gabigol + up to 80m for 2 CMs) could be spent if you take into account the usual net spend of about 50m
Squad:
GK (3): Buffon, Neto, Audero (Yth)
FB (4): Alves, Sandro, Licht, Evra
CB (6): Chiellini, Bonucci, Barzagli, Benatia, Rugani, Marrone (Yth)
CM (7): Marchisio (Yth), Pjanic, Khedira, Sturaro, Asamoah, ??, ??
FW (5): Dybala, Higuain, Mandzukic, Pjaca, Gabigol (U21)
24 players + 1 U21 - should be fine according to the rules