"I am now preparing to buy my scout for next season, have an AML/ML in mind, 22yo only 12 Skill points away from a 6*. I'd like to buy him now before he disappears from my list, I just have some concerns as to how he will perform."

I agree here with July, he will be 5 stars close to 6 stars next season, better to wait till day 1 and you can buy a much better player