See no reason why your idea would not work. You're building a smoker and hanging a smoke generator on it. Just like in the plans that used to be attached to the old Bradley web site (they may still be attached to the current web site, I just haven't gone looking for them). I assume that you're putting appropriate vents and the like in your wood box.
I also assume that you're an experienced smoker and are familiar with the ins and outs of curing sausage and the danger zone for bacteria growth.