Pics needed of rear seat mounts for bay kombi

Can someone please put up a pic or 2 of the correct mount/support that the back half of the rear seat sits against in a bay kombi? This is on the rear rear seat that goes against the engine bay. Mine has some not so correct bunnings ones but if I know what they look like I can replicate them (unless they are easily found secondhand).

Also can someone explain the purpose of the silver brackets that the seat belts go through on this same model? Mine doesn't have them but I've seen them on the 8 seaters and wondered if they are a requirement when seat belts are fitted?

2 diff mounts depending on yr of bus , the lower section of the backrest can have a guide setup or bolted to the bulkhead (lowlight) and the sides are just a basic angle piece 2 screws into seat and 1 into the side of the bus 6mm bolts from memory ,brackets can be bought new from various bus parts suppliers , jk or busstop
the belt mounts /guide is late bay only as lowlights you have to drill holes for the rivets that secure it before you put seatbelt bolt in ,unless deluxes had them