I will be building a cold smoke house this spring and need some advice. I plan on making a 4' by 4' concrete block base on a slab with a cedar cabinet on top. I plan on using a barrel stove for a firebox with a 6 inch pipe running through the cement block base. The firebox pipe won't have much of an angle because it's flat where I'm building. There will be a 6 inch pipe through the roof with a damper to control the heat or lack there of. My questions are, do I need to put vents in the cabinet to control moisture, is 4' by 4' a good size for sausage, snack sticks and racks for cheese and such. How long should the pipe be from the fire barrel to the smoker, I live in Wisconsin, so it will be cooler. I understand that there are a lot of variables, but I plan on putting the firebox on a small slab so I want to get it right the first time. I'm shooting for something like the photo. Any help from you experts would be really appreciated. Thanks.