Hello, I've cold smoked bacon a couple times on my grill using only an AMNPS. I'm hooked! I am looking for a better setup though. My grill has a ton of open areas and the AMNPS either stays lit or completely blows out. I'd like to build a small portable unit that can handle around 20# of pork belly. I'd like it to be mobile and metal. I was thinking something like a cheap brinkman charcoal model? Any thoughts or ideas would be appreciated. Thanks.