You can also create 6 new accounts and build your own association. This way you can ensure that everybody is playing actively and it is quite easy to maintain Gold I league when you have 60-80% teams and only log in at weekends to train bonuses, maybe once in the week. Most of the times you will promote due to inactive teams in your leagues and get 50 Token on 6 Accounts every month once it is set up, with not too much work.
Make more than 1, just enter once or twice for season. You dont need to be in assotiation for tokens, you get 1 token anyway.
Actually you dont have to be level 4 to enter assotiation, you just cant make assotiation but someone could call you in asso no metter what level you are.