Yes it is a "Live" (Double) clutch. It will come as a complete assembly, usually, you will also need pilot and thrust bearings. Watch the thrust bearing as the original was a double row of ball bearings and the replacement is a single row. This makes the bearing much thinner and the operating levers on the clutch will foul on the bearing carrier. I made a spacer to go behind the bearing and bring it forward to the correct position on mine.
Clutches are available here in England but should also be available in the US. You can also put new plates in but I have found this to be false economy as the linkage will be worn and you have to have the proper tools to rebuild and set it up.