Star Trader's Luck

This is a dice game where players attempt to maximize profit by traveling from planet to planet buying and selling different types of goods within a limited time. The roll of 3 to 5 dice (which can be manipulated to some extent) determines the available goods at the found planet and their level of demand (which basically affects price and maximum buying quantity). Players then decide if they want to sell and/or buy goods there. Also, every action takes time, and how you spend it is very important. Will you spend more time to reach a bigger planet so that the chances of getting cheap cargo will be bigger? or will you travel to smaller planets, hoping to increase the number of trades even though they may be a bit less profitable? Will you try to sell and buy on the same planet to save traveling time, but risk getting a worse deal on one of the transactions? or will you just do one thing, maximizing profit but wasting more time flying through space? Last, will you risk losing your cargo by selling it where it's illegal?