So, I'm currently thinking about a new character (without actually "finishing" my current one yet... but that's another story), and I'm considering of building a Hearthfire home for the first time. Now what bothers me a bit is, that you don't really have any merchants in those houses, and you need to run back and forth between your house and the next city (or village) if you want to sell/buy/store stuff. I know that if you marry, your spouse will open a shop. But I couldn't find any information about how much gold they have available for bartering; neither on uesp (neither on the page for marriage, nor on the page for merchants, nor the related discussion-pages), nor on any page I could find with Google. All I find is, that they will give you 100 gold a day... which I already knew from uesp.
tl;dr: How much gold do spouses have available for bartering?
If it's too less, I might have to stick to Breezehome... or run around like crazy after every dungeon, or use a mod that I've found which adds a merchant to your house (which is also a fence and behaves like one, but that would be a bit weird as I don't really plan on joining the Thieves Guild with this character... being a mage and such).