Originally posted by RockvilleBob until I can insure that my copy of the 70-200 Sigma lens works electrically or software wise
Have you checked the LensID reported by exiftool? You'll just need an image taken with some Pentax DSLR and the 70-200, and run the following command line with it:
Code:
exiftool -b -LensID yourimage.jpg
(also works on .dng and .pef files)
If the result is "8 255", your lens needs a firmware upgrade, if it's "8 16", it does not and will work fine on the K-1.
The mechanical problem is not so severe that you'd be unabled to attach the lens, it just leaves a small scuff mark. Yes, that's something it shouldn't, but it's not severe damage to the camera, it's mostly a cosmetical problem.
Of course you might want to wait a while 'till you get yourself a copy of the K-1 - maybe it's price will drop (something I doubt for the foreseeable future due to the demand, which seems to be quite high).