1995 Acura Integra Question

1) What is the labor cost for replcaement of clutch (clutch kit) of Acura Integra GSR?

2) While driving, when I press on the clutch to change the gear, the gear gets jammed and the gear gives me a lot of resistance to change. In fact inspite of pressing on the clutch, I am just not able to change the gear. My mechanic told that the issue is with the clutch. So in your opinion which all parts of the clutch need to be changed to get a good result. What could be the cost of each of those parts required to be replaced?