A. You can change the clutch out without removing the clam, but it a real knuckle busting job. Have to remove motor mount and tilt the engine to slide the transmission off. Really a bear trying to slide back in.
B. Removing the clam is really not a big deal. Can even be done by one person if careful. Makes changing the clutch much easier. Also a good time to think about installing clam hinge.
C. In my opinion, it’s easier to completely remove the drivetrain to change the clutch then fuss with it in the car. Can also get to the dreaded u-tube in the coolant system. NOTE: for DIY you need the proper tools; ramps, jacks, jack stands, engine hoist to name a few.
D. The repair quotes seem extremely high, the parts aren’t that expensive even for upgrade clutch and flywheel.
E. Doing it yourself is a great way to learn about your car. Get a manual, go slow, double check each step and get a great sense of accomplishment.
"It always seems to be something!"