26500 - 2000 = 24500. right on target as listed on carsdirect (with power package). IF you can ask dealer to throw some freebees, such as floor mats, roof rack, cargo cover, etc... it will make the deal more sweet.
Rear Sonar is a very good safety feature and you are going to LOVE it. Especially for such a large car (Quest has a longer wheelbase than both Sienna and Ody by ~ 5 inches).
Did you test drive the car? you will feel how easy to handle it, similar as a sedan. The gas pedal is very light, which makes it a great car for long journey. YOu will not easily get tired.