Seats are fixed back.
PM me your email address and later today I will scan the relevant dash pages.
The car originally came with a massive socket for the single centre nut with two holes through it for a long bar, once tightened there is a safety grub screw which is Allen key. Also there should be a long shiny silver bar across the rear of the boot in clips for the socket. I have been warned the nuts are very difficult to undo and torque up, I need to check what the torque is, maybe someone else can advise.
If you take them off then when put back on you are meant to torque up, take the car for a short drive then recheck check the torque and then fit the grub screw torqued to 20Nm.
