My Australian Kombi originally only had a cab headliner and then nothing in the back however I now want to fit a full length headliner and possibly do the sides as well like a microbus. Above the sliding door should there be another clamping strip like above the cab doors or is it just glued? How is it held on at the back, just stretched and glued or another clamping strip? Finally, my bus has the metal trim panels in the rear corners, what happens with the headliner material when it crosses these do you just end up with a seam half way up? Thanks