none of this work is going to be accepted without Xoria's approval. Xoria is the trading system lead developer.
I see he's commented in this thread. He's saying that your new commodity descriptions and icons might be accepted for 4.87 but not for 4.86. He's explicitly stated that you should not to concern yourself with the pricing and has asked that you consider where these new commodities would be produced and consumed.
As for the player controlled bases and shops, these have no impact on the trading system and are completely seperate from it.
Proud member of "the most paranoid group of people in the community"