You are lucky to have a very good 2* player. This player is usually for immediate sale but he can contribute in your level. Suggest you not to let him grow to 3* (now 13 skill points to 3*).

The 4* player is reasonable one. Personally I think token academy player is not worth for sign unless your team have shortage of cash. If you like signing him, the cost is reasonable. You have plenty of time to train him at this early season to easily make him a 5* player. This potential is reflected in the token cost and starting average quality.