I had to do this a while ago, as it was my first and only time I hope,- it was a nightmare, I removed the rear bench and seat as its not sumin that just slides in at an angle!, also the B pillar has to come off.
It may help to remove the lower seat belt mount, tho I didn't have the 10mm multi spline torque.
And for some reason I can't remember the front trim piece that goes to the front footwell.