Before I start drilling holes and spending some money, wanted to see what you all thought. Picked up this insulated warming/cooling utility cart. It looks like it would have been used on an airplane maybe? or for banquets? Its not huge but then again I wasnt looking for something huge so thought this would be easier to manage. Interior dimensions are 26d x 18w x 25 h. Cart has nice handles and wheels and is all aluminum as far as i can tell with foam insulation. Plan is to install a burner simular to this http://www.sausagemaker.com/41900heatingelementfor20lbsmoker.aspx And then also get myself an AMNS or AMNPS not sure which would work better? Want something that will both cold smoke and heat up nicely. I know aluminum is good up to 1200 degrees and even on a hotter smoke i dont see any reason to get up past 325. Hoping i can run the AMNS/AMNPS and then just turn on the burner to supplement heat is needed? Ivs been doing a lot of reading, hoping to build my own PID however may just end up buying something pre-made from Auber http://www.auberins.com/index.php?main_page=product_info&cPath=8&products_id=203 I guess im just looking for confirmation that this should work out? Assuming my plan seems good, then I was hoping for some input on where to start moding the box. Ive never done this type of conversion before and after reading a million threads its kind of hard to gauge how i should go about this because everyone has their own opinion and no 2 custom builds are the same. Seems pretty obvious that I will need to make to mods to the box, air intake near the bottom and chimney at the top. Thoughts on location and size?? Materials? Ball valves? Something more professional looking. Im not opposed to spending a little money to get something nice both in appearance and functionality. The mailbox idea is intriguing however I wish I could find a better, more professional looking alu/steel box to attach. Any and all input is appreciated...thanks in advance.