Ok, where is your shop and what times do you restock, so I can start camping it?

Metal slabs are indeed hard to find - I tend to snap up all lower levels as I see them. I have seen people sell masterwork metal slabs before, and those actually seem like they stay in the shop for a few days before someone buys them. Not sure if that means they are too high-level, too expensive or people don't mind running their own Ilmari surveys.
Anyway, I'm still curious about the time/profit ratio involved: How long does it take you to farm up items to restock your shop, or are you just putting up things you'd normally vendor? When you say you sold 100K - what part of that is profit over the vendor price? Just wondering... I'm definitely willing to believe that running a shop is quite profitable these days.