I looked around a bit last summer. The Pentax rep for my local independent store didn't seem to know what the lens was (confirmed that the DA 35 was available in response to a request for information on the FA 35). The last Henry's I inquired at didn't want to try to find information on availability because the FA 35 didn't show up in their ordering system.
You might try your local Henry's or maybe Aden or Downtown Camera to see if your luck is any better. At the time McBain Camera in Alberta was the only place I found in Canada that had the lens on their website but I didn't get around to calling to see if they could actually get it.
McBain Camera -Pentax FA 35mm F2.0 AL
Eventually I decided to pick up an FA 50 and an A 28 instead to cover on either side of the FA 35. Still a lens I intend to try eventually but I'm not in any rush at the moment.