I would offer that you go for it. Get a good brisket ( the better the grade the more room to hit the finish-line) and check out the Aaron Franklin videos for the prep and slice. I honestly think the "challenge" is over-hyped. Once you get there, no going back.
I saw that you had responded to a Mini Max price question and had mentioned that a local retailer was selling for $699 plus free plate setter. I was wondering if that was Dickson BBQ Centre on Ave Rd.?