Here we go, I found them :
http://search.ebay.com/search/search.dll?sofocus=bs&sbrftog=1&catref=C6&from=R40&satitle=pentax+eos+adapter+-screw+-m42&sacat=-1%26catref%3DC6&sargn=-1%26saslc%3D2&sadis=200&fpos=04240&sabfmts=1&saobfmts=insif&ftrt=1&ftrv=1&saprclo=&saprchi=&fsop=1%26fsoo%3D1 (Click)
I'd be inclined to have AF confirm chip and ensure infinity focus is possible. Some adaptations don't have those two features.
Have fun!
Craig
>> Stay informed about: crazy question.. adapting old lenses to new DSLR