If anybody is interested let me know and I'll upload the files to thingiverse. I wanted to put in a dashcam but most solutions either mount directly to the screen or mount in such a way they would interfere with the remis blinds. I bought a middle of the road nextbase which had a ball and socket arrangement for mounting. I designed and printed the bracket that I screwed into the cab roof and has three locking bolts to tighten on the ball. Works perfectly and I think most of the nextbase stuff has the ball and socket setup. Allows me to disconnect the dashcam if required and no shake on the video feed when driving!!