Im looking for a great stereo shotgun mic within the $1,000-$2,000 range. What can you suggest?
There aren't a ton of options out there. The few that come to mind are the Audio-Technica AT835ST (right around $1k), Sanken CSS-5 ($2300), and the Sennheiser MKH418S ($1700). The Audio-Technica can be used in either M/S or XY mode (it's outputting a decoded M/S signal, not true XY) and the Sanken has multiple modes as well. The Sennheiser is M/S only. I haven't used the AT or Sanken personally, but I know a few people who like both microphones. The Sennheiser isn't bad (we have one at work), but it can be noisy and is never my first choice as far as stereo recordings.
From what I've heard, the AT and the Sanken have similar noise floors. So, that's something to keep in mind regarding use and application. Is there a particular reason you want a "shotgun" style microphone? Would any "single point stereo" mic do, or are you specifically looking for something with an interference tube?
What is the intended use? Shotgun implies you want an MS setup. XY is not possible with a shotgun mic, unless you use 2, but it won't sound great.