Having Embolo and Rashford rotating with Ibra and the new RW won't be that bad actually. They'll get plenty of games, won't be rushed in given their age but also we will have options up front.
Embolo for 20m EUR is a no brainer really. He's highly rated so even if he flops we surely can get at least 10m or so off him in 2-3 years. Ibra is free, Embolo 20m, get a first team winger for 40-50m EUR and we have a pretty good frontline - experience mixed with also big potential.
Ibra, Embolo, Bailly, RW, CM and probably a #10 will be a great window for us.