I purchased this from an IIS user a year ago and have used it a couple of times. All works beautifully as expected.
Comes with Camera & Soft Padded Case & box
only.
No extension rings or cables (which is how it came to me also).
$950 + postage.
Example images taken with it & an L-Extreme filter:
Image 1
Image 2
Image 3
Image 4