Hello guys, I'm a newbie at smokers, I have had this smoker for about 4 years now. Would like to convert it over to a reverse flow smoke. The firebox is starting to rust and warp, it's 1/8in steal. Was thing about cutting the firebox off completely and going with a new box design using 1/4in steal, also using 1/4in for the baffle plate. Should I get rid the current box or should I keep with what have and just add the baffle?