Yes!

Bought both - FA* lens and case .

@Unlocker: Willing to pay 2000€ for your "ugly" F* directly without hesitating .

Be aware that the photo obviously has been used before, see e.g.:
http://www.getdpi.com/forum/gear-fs-wtb/40555-fs-pentax-645d-boxed-55mm-lens-75-...

So, inspection and personal hand-over would be a must, imho

Some remarks on the settings, which might be useful:

"Bright" (default setting [!]) and/or "Extra Sharpness" should be avoided when using high ISO numbers (see image below). I mainly used as standard:

-

2:
Noise Reduction - Custom
ISO 0100-01250 - OFF
ISO 1600-02500 - +1
ISO 3200-05000 - +2
ISO 6400-51200 - +3

C3:
16. 1st Frame Action in AF.C - 3 (Focus-priority)
17. Action in AF.C Continuous - 3 (FPS-priority)
18. Hold AF Status - 4 (High) or 1 (Off)

C4:
27. Using Aperture Ring - 2 (Enable)

Custom Image:
Natural
Contrast +2
Fine Sharpness +2

-

FA 100 Makro, f9, 1/800s, ISO 25600
Details of a jalousie (inset: overall picture)
Comparison (ltr):
Bright (Contrast +1, Extra Sharpness +4)
Bright (Contrast +1, Sharpness +1)
Natural (Contrast 0, Sharpness 0)

I do not own a telescope but this is the moon shot with the Q and 1200mm (Sigma EX 2x + FA* 600):

...unfortunately is in German :
http://forum.digitalfotonetz.de/viewtopic.php?t=102375
But you can use google translate, have a look at the pictures and ask questions here. I also compared the K-3 with the K-5.

Moiré is less pronounced at small and at big aperture settings.
One could use MTF diagrams as a guideline to guess the corresponding f-stops for a specific lens.
At open aperture picture quality might not be sufficient.
Diffraction also can act as pseudo-AA-filter.
However, image quality then also is affected.
Other ways to reduce moiré: faint defocus (see above), a slightly different shooting position,...

So, here we go (similar pattern & conditions):
[IMG]http://www.pentaxforums.com/gallery/images/3465/large/1_Vergleich.jpg[/IMG]
K-3 + FA 20-35 (ISO 100, 20mm, f7.1, distance about 1.2m, AA-Filter-Simulator: OFF, TYPE 1, TYPE 2)
http://www.pentaxforums.com/forums/172-pentax-k-3/248432-k-3-aa-filter-simulator...

The small size is the main advantage of the GR.
A size comparison and pictures: http://forum.digitalfotonetz.de/viewtopic.php?t=101006