This was the passenger side.....

Under the seat is a metal plate which I'm guessing is for protection if anything comes through the floor......

These are the seat bolts.....two matching pairs at the front and the rears just visible...

Rears.....

Finally...this is the end of that crossmember (this is nearside). The lower bolt is the front leaf spring, and the upper one is the seat belt mounting.

The offside is obscured by the fuel lines, but is just accessible.

The whole job took four hours. Replacing the bolts is fiddly but nothing in this job is difficult.
I must now dash...........