So I picked up a like new Masterbuilt electric smoker today for a $100. I plan on using this just for cold smoking (bacon!) with the mailbox mod. Thinking of drawing up and 3d printing a 3" adapter in PETG to easily connect where the chip tray goes and connect to the 3" ducting. Temps as I'm cold smoking shouldn't be an issue. Any concerns with making and using a PETG plug and play adapter?