I have had a SS Smok-it #2 for about 3 years now, and it is still good as new under my covered deck other than having dust on top of it. #399 right now with about $50 shipping.
I would suggest taking a look at it. It is Very High Quality, simple ease of use, you do not need attachments like an Amaze or anything like that to produce quality end smoke products. I smoke at least every couple of weeks. Still working on my second $8 wood chunk bag.
Put a couple small plain wood chunks, put the meat in, plug it in, take the meat out when it is done. Stupid simple. Use less than 3ft of new aluminum foil when the bottom gets dirty and a little wipe out. No external motors, blowers, tweeking the seals, or any other dinking with it to make it work like it is supposed to. One moving part (other than the wheels) the on/off thermostat.
Mine is the original with the similar on/off oven temp control with "Huge Temp Swings" from about 217 to 231 with it set on 225 that make some people crazy, to me, so what? Wind blowing on your chacoaler make that much difference. Bottom line, It is much closer than I can manually keep a brisket or PB with a charcoaler or wood burner over the cook time.
Just my opinion. Good luck to you.