Plastic Housing? So the fork that the slave cylinder pushes against is metal and the bearing is metal but the housing the fork pushes against to make the bearing engage is plastic?
Anyway the reason I am posting is I know someone (with a RWD Toyota) who had a bearing fail and the Gearbox Input Shaft somehow got bent ending up not 100% straight. A few hundred km's after being put back together it snapped wrecking the new clutch, so then the gearbox had to removed again to replace both the clutch and the input shaft. You would hope you have not damaged the input shaft but certainly worth looking at before you put the engine back in.
Good luck with the car, certainly sounds like one smallish job has ended up being one much larger job with the new radiator etc. while the engine is out.
