Thanks! I posted an update fixing these issues, except for the repair kit one. You're right - changing this would be complicated, and it's not a bug, just an unrealistic feature (that benefits the player).
Also - are you sure that 400 credits was enough to buy common goods at the bugged market? I found the typo that caused this issue, but it required 500, not 400, to buy the goods, and now I'm wondering if I missed something.