I managed to max out selling gold and salt on 4 spaceships and 1 maxed out selling glass. Making on and off $210 a day. With x8 speed, i could make around $94500 per hour. To reach the goal of $2000000000000, it would take me 21164021 hours or 2415 years.

It took me way to long to realise this probably isn't possible.

Great map though.