A few thoughts-
I wouldn’t spend 2-3k on a smoker that’s gonna have 3/4 of its use at 2hrs or less. I also would not buy a smoker for 500+ degree grilling. I most definitely would not buy a smoker that didn’t have a second shelf.
As to space I have the Yoder 480 and it has tons of it. It’s been flawless for the year and a half or so I’ve had it. I make the best baby back ribs on the planet with it as well as fantastic pulled pork, hot smoked salmon, duck breast, goose pastrami, jerky and a few other things. Paid about $1,300 new (picked up from local dealer) and included the upper shelf. If I use rib racks I could do maybe a dozen ribs at once on it although rotating them would be a chore as the racks can tear off bark. Can probably fit 6 pork butts with no trouble.
For the cost of some of your options you could get a 480 and a very nice gas grill with infrared for searing. And maybe even a rotisserie (mmm good chicken and really good tenderloin) for it as well.
I also looked at the Pitts and spits in person and considered a PG500. I ultimately didn’t want the limited smoking area of the PG500 and preferred the deeper (front to back) 480 over the relatively shallow comparable Pitts and spits. Also felt more comfortable with Yoders reputation. The Pitts was a very heavily built machine though. I do recall one of the Pitts machines had a pull out bottom rack. Would love that on my Yoder.