Hi. I have a T6 with Dometic cassette awning and two of the screw heads holding it on have sheared off, leaving the self tapping screws in one part of the bracket. I think I can take the awning cassette off, but the bottom half of the bracket looks to have been riveted at some point meaning I can't take the bracket apart to repair/replace. I'm not sure if I should take this somewhere to get the top bracket riveted or to a Campervan specialist to replace the whole bracket system. Thoughts and ideas (especially near Watford if poss).