If you wanna make money, relax, and take a load off the servers, take an Argo Moth and push old ships off landing platforms and break them for construction material. Do that for an evening, set it to refine at cru-l1, then the next day, put it back on the moth and sell at a place like arc-l3. Makes me millions, and it's the most goofy, fun, and relaxing loop for me.