Hi. I just got a brink Mann vertical charcoal smoker. My first question is, could we use wood instead of charcoal to save money? Second question is , we plan to do a lot of whole chickens so we have left overs...what's the best way to smoke a whole chicken? Using a rub? Should we get a large chicken or a few smaller ones? Ok that's a few questions, last one... Any tips for beginners?