Bob,
I like it.
I did solve the long shank barrel/short receiver when I installed the original '06 barrel though, by using a spacer or breeching washer. Yes, the 6" bbl is installed in a "reject" Kreighoff receiver, note the reject star marking.
I have a similar mismatch on my navy shooter, when I used/use it with a 4" bbl/short receiver. Shown in the lower picture below with my Erma .22lr kit installed on the 4" combination.
As you can see, grips and frame finish were "improved" along the way and I now have a second muzzle nut for the conversion, thanks to lugerdoc!
All-
Keep the pictures coming guys!