I like the Vortex line as well, but personally I'd need some more info before making my own recommendation.
You mentioned 1K would be possible- but didn't say under what circumstances.
Is it a range, with known distances/targets?
Or, is it wide open spaces where you need to range your target?
Makes a big difference.
If you're shooting at a range with known distances to the targets, there is no need for a FFP/Mil/Mil optic (FFP= First Focal Plane).
If you're not, then this becomes very relevant. Ranging with SFP reticles needs to be done at a specific magnification, while with FFP it can be done at any. The downside to this is that the reticle grows in size along with magnification, and with a high power scope the crosshair will obscure more of the target at long range than that of a similar SFP scope. A mildot reticle (and corresponding turrets) makes estimating range easier based on target size, and shots can be made using holdover instead of needing to mess with the turrets if desired.
There is a substantial cost difference between FFP and the more common SFP (Second Focal Plane) optics. If you don't need FFP, then the dollars can be put into higher quality glass (or ammo, upgrades, or left in the piggy bank).
If you're not familiar with SFP/FFP scopes, you should watch this:
http://www.vortexoptics.com/video/first_vs_second_focal_plane