1.) Yes
2.) The viewfinder comes from the factory properly calibrated. If it doesn't look the same way on your TV or computer that it looked on your VF, you need to calibrate those items.
3.) I don't have one (I've got a VX21), but expect to pay around $1,500 for one on eBay.
How other people's footage looks should be the one of your lowest concerns. Knowing the reputation of the VX series, you should be more concerned about being able to fully use the camera and being able to correctly set all the settings on the camera. If you can correctly set all those variables, you can get whatever look you want in a post production program using color correction and adjust various aspects of the picture.