Based upon the photos (which are insufficient for this) there could be (and likely is) hidden damage.
I'd base the estimate on a scenario like:
Labor:
R&R left rear fender
Repair passenger door
R&R Hood, Fender, Passenger Apron
Windshield
8 hours misc mechanical
8 hours of frame time
Parts:
Front bumper cover
Hood
Right front fender
Right apron
Right rear fender
Fan
Radiator
Lower radiator support
Upper radiator support
Paint:
Repaint entire car.
Go to a shop, get a rough estimate for that, add 20% to that, then add what you'll pay for the wreck and you should be CLOSE to what you'll be paying for this MKIV.
That's provided the wheels aren't bent, tires aren't flat spotted (which they probably are) etc, etc, etc...
And I'll bet you can find one for less out there that hasn't been wrecked.
I would like to hear Adjuster's take on this since he's in the biz...