Hello, I had a problem with my pentax DA 35 mm f/2.4 (the focus was scratching, there was some sort of crumbs into the gear wheel) so I disassembled it to clean it. The problem is that I've been quite clumsy and I've broken the flex cable (fundamental, without it the camera doesn't talk with the lens and I cannot change even the aperture) and a thing that in this post someone called information brush (I haven't understood exaclty what it does but is connected to the autofocus, so I care but less, I can just use the lens in manual focus). Does someone know if it's possible to buy the replacements? I don't think it's possible to fix them (in particulat the broken flex cable, I've seen some video of people that sold it but it looks really hard).
Here explicative pictures.