Hi Dave. It almost sounds like the clutch at one time was frozen to the plate and flywheel (as they do when not used for a long time) and then when the pedal was first actuated the bearing has bent the fingers before releasing off the frozen plate. I hope that makes sense? Anyway it sounds like all new clutch time. Unless you enjoy pulling gearboxs out several times?

As for the seats yes it appears that ford fitted seats from the tc cortina as these are identical except for the tilt foward mechanism so Im thinking that they are specifically from the cortina tc 2door.
Ive seen a few capris like this and they were built around dec71 thru to mid 72? What threw me was that my car was built with the older style seats just converted to high back and its a late 72 build so I just assumed that all capris had the same style of seat. The old style of seat is fixed to the floor whereas the tc style has two brackets welded to the floor crossbrace at the front of the seat. This also explains why when the floor of my car was painted in the body color it was stopped short of the crossbrace so that the seat brackets could be welded on (they were done by hand by someone in the factory that actually knew how to weld) then the crossbrace and brackets were painted black. My car never got the tc seats or the brackets so the crossbrace being painted black was mystifying, until recently. I hope this is fascinating to someone, anyone?