WTB: Tamron 17-50mm, Pentax mount

[B Erickson]

I am looking for a Tamron 17-50mm for my new Pentax K-X. I bought the camera with the 18-55 & the 55-300 lenses and would consider trading these for the Tamron if you are interested.
For reference, I have lots of feedback on FM, same id; B Erickson