Take some shipping tag, Republican, Gateway, Universal or Bowex.
Tbh Universal and Bowex are quite popular atm, so better pick Gateway ID/IFF.;)
If you're looking for combat efficiency, replace transports by freighters or get containers (Shires/Akegatas).
Make yourself some contracts, perhaps, to derive roleplay and stable enemies.
Thank you for you feedback. I believe we will be staying with IC as the heat has died down, a slightly awe full mistake on our part. We've decided to Escort our trade vessels with Civilian ships.