1) I imagine you are going to generate more heat than you want that way. 2) The amount of ducting and labor you'll use to mate that Traeger with your Performer will probably cover the cost of a smoke tool. It's only 35 bucks - and its the right tool for the right job. And you won't need to stick the units so close together to rig them. 3) Putting the hole at meat level will destroy the performer entirely.
If you want to experiment, you might want to get yourself an aluminum pie pan, dump some pellets in it and light the top of them (sort of mini Minion Method) with a torch. Stick the pan in the bottom of the performer.
I'm sure others will chime in, but I'd stick with the smoker tray solution myself.