Additional merchants

I sometimes get stuck for a long time looking for things, which is fine in moderation but getting all components for an upgrade can be tricky sometimes. I therefore propose that there should be an addition of two kinds of merchants:

1. Merchant at remote and dangerous location, preferably a random room somewhere if on randomizer. This merchant sells random components at 5 times the asking price in shop. Every time you visit, it has a new stock. Not like you can just go out and go in again. The trigger should probably be a mix of time and traveling.

2. Traveling merchant that moves around the map and sell random stuff at random prices. This incentivizes being stacked on coin in case you encounter this merchant. The prices should absolutely be outrageous, like the other merchant, but at times you catch a lucky break and get a good deal. Perhaps some jewels you're missing, or that dagger you wanted.