Heya guys!
I have a more easy way to make basic money, (100000) without risks.
First you need 2-3000 from quest, loot etc, than buy mercenaries (cca30-40 'couse the bandits, deserters have a same number of party they'll running and dont attack ) go south of the map, make a big round (Izum fort., Kyzyl-yar fort., Perekop, Kalanchak fort) and buy spice (price under 3-400) velvet (100-200) iron (20-40) oil (40-60) and than go north and sell it at the russian big cities (Ryazan, Tula, Novogorod) and the big cities of sweden kingdome (Vyborg, Pskov, Narva) when the price is good (spice 900-1100, velvet 900-1300, iron 300, oil 300-500).
When before you go back to another round sometimes worthwhile to look around for fur buy it if its around 20-50 and than sell at south. Or if you go back south with empty inventory try to catch a few deserter band for loot- very rarely i got a nice loot (but most of the time is really disappoint me when i kill 30 muskateer i got only two hat and a bag of useless bullet :-/ all enemy eat their own gun and armor before they die or what?)
I hope you guys find it useful !