Economy overhaul overhaul
Just a few suggestions on the economy front:
Online shopping: Allow remote economy block operations as long as a data connection (antennae) is available. Cargo drones could deliver your items in a small parachute drop at an extra cost.
Allow per unit buy/sell pricing for stores with no limit on quantity of units. Use local supply/demand to regulate prices.
Add NPC ships to visit and buy from PC stores.