And to further dash your hopes the PP and PPK are prohibs. And judging by your CGN join date I suspect that you're a fairly new shooter so you won't have wandered in here with your 12-6 prohib status attached.
A PP with a "restricted" barrel would not look too out of place. But the smaller PPK with a restricted length barrel simply looks far too much like Pinocchio after too many lies....

Some time back I did some image doctoring to see what a PPK with a legal restricted barrel would look like. It was simply too ugly for words and I didn't even save the resulting picture.
About the closest you'll get and still be good looking would be the restricted barrel length Maks imported by the CGN site sponsor Interammo. Here, have a look.
http://interammo.com/shop/product_info.php?cPath=32_34&products_id=87
I've shot a Mak belonging to a buddy that has his 12-6. A fun gun but I don't NEED to get into another reloading size with brass which is less common and with a gun which does not meet the power factor needed for a lot of the competitions I like.