please do not do that.
premeditating the crime makes it more interesting (mapping local black markets and anarchy systems, checking local factions and so on)
when committing a crime without proper preparation then the fun comes from avoiding being interdicted by authority ships while searching for an outpost with black market or even smuggling the goods into a higher security station using boost, heat cells, silent running and skill.
in fact, it should be more difficult to find black markets or there should be markets with better prices that are more difficult to find (require trust from criminal minor faction, or a certain amount of smuggling history)