A forge to make brew

does not match the way the game is played, You can get brew by playing together with your clan, since you get monster chests from your mates.
Shields are easily obtainable by completing Dragon quests, and if don't have any, you can always hide your troops in a shielded clanmate..
To produce Brew and Shields, you would probably going to need some special resources obtained from Resource nodes or monsters, so there's is no point on going through it.