As usual- you write very good reviews when it comes to sport.
I have also played it from the beginning and go up to champions league today.
I have get almost the same amount of hive back as you so far (just 5 hive more)
They will not put RBN in hive-engine. They mention it in last blogpost that it will be a inside-game-trading-function from januari. I not sure how but they show some pics at the blogpost.
I see that it is a strong hive-account and get pretty good upvotes at there blogpost. I hope that the dev.team get some money that way so they can continue to give out seasonrewards and dev the game. Because I see a weakness in every hive-game - It is not easy to get extremly much players.