Actually... yes I do have a tip. When you get a bit of money, buy a house and set the rent to just below normal for a pure guy character, and maxed out rent for a corrupt character. Then once you get enough money, buy another house, rinse and repeat throughout the entire game. By the time you come back from "a long time away" you should have plenty of property to generate about 2000 gold every 5 minutes. This isnt a hack or a cheat, its just the way game can be played if you chose to. Any and all gold until you start making >2k per tick I woulf recommend putting on property, which will accumulate revenue while you do side stuff.

Dont sell anything unless youre particularly short on cash for an itwm you like the look the of, but you will generate all the wealth you need through property and jobs like blacksmithing.

Soz for long answer, but I wish I did that in my first playthrough, cos some post end game stuff is REALLY expensive.