Totally agree with everyone's advice, Eric! Just get the #2 and a cheap remote thermometer, then add the rest later! You will have no problem, at all, producing some really great Q with just the smoker, while saving for the optional accessories! The difference in shelf size, between the #1 and 2, is 1 1/2" depth and 2 1/2" width. Doesn't sound like much, but when combined with the height difference, it's HUGE! Definitely go the #2.