I use the money cheat often to take away money for stuff I feel is completely unrealistic, never saw how someone could catch and sell fish.
I often restrict my sims travel between towns (worlds) and neighborhoods, don't think he should be able to travel to too many neighborhoods in the same day and when traveling to another town he's committed to at least one overnight stay there.
I set up vacation rental homes in the towns for the sim to pay to stay in while traveling or they just need to rent. Unfortunately since this puts sims on "vacation" it makes getting into a job more difficult (instead of going to work they automatically take days off) so I've had just set them up in the house and use the money cheat to take rent from their account.
When doing Rags to Riches like challenges they have to wait till they can afford a structure before they get a shower and toilet etc. I've let them set up the cot bed for sleeping outside at night
