If your stadium is built to a decent size (at least all VIP and Exec seats plus), and you already have the fitness center and training hall, then I see no problem with getting the club shop. It won't pay out as much in a lower division, but it will still pay out.

It isn't too early.

You are right not to buy a training hall yet, if you still train physical then you don't need one, or expensive coaches in any position.

With your stadium size, yes build a shop now.

General advice for you though. Lose all of your expensive players and sell any player over 23 years old and start to buy players only over 4 stars talent.

You have a 25 year old wide receiver costing you 14,000 a week and he's a 2 star talent. Lose him.

When you go to one of your players, you have rating, talent, team chemistry and experience at the top of the screen.

Talent can be anything from half a star up to 5 stars. This means in their non-physical attributes, it dictates the maximum they can go to. If you have a player with 0.5 stars talent their passing will only go to 11. 2 stars it will go to 14. 3.5 stars it will go to 17. 5 Stars it will go to 20. Make sense?

These also dictate wages by the way, which is why it's better to train fitness skills first until they are capped, and stamina to around 12. Because if you have a QB with passing of 10, it costs you around 11k a week. Passing of 20, 100k a week.