In need of Granite

Well, I had almost saved enough granite to build the crossbowsmith when I accidentally clicked to upgrade the gold smelter from level 2 to level 3. There is no way to cancel an upgrade and there is no confirmation box to do upgrades...I had never planned on upgrading the smelter to 3, I'm not even gonna do the math to find out how much running time it has to work to even pay for itself now.

So, the short of it is, I need granite to make up for my mistake.
I've got a few adventures to trade: Sons of the Veld, Traitors, Witch of the Swamp.
I have plenty of Exotic Logs, Granite, Hardwood Planks, Iron Swords, Steel Swords for trade.

I am desperate, but I am not going to accept trades that are worse for me than I could just get on the trade tab (ie I'm not going to trade 400 marble for 15 granite when I could just sell 400 marble for 25-30coin and buy 30-45 granite with the coin).

Thanks!
Rantankerous