My suggestion is that don't try to get 5* players, instead try to grab 4*
You can easily pick them up for 1T and you can easily get them 1 star up in a season if he is under 24 year old.

Two 4* plus the free talent given for free (each new team are given a 18y 4* player that is very talented that can last you at least 6 seasons) can easily get you top spot of the league and play a few cup games.

It is important to get into CL and survive in the cup because the prize is very significant, you can often buy two 4* players just for advancing in the cup once.