I would go to an independant shop for a quote. Or even just call around, give them the make/year/model and exact problem, and even tell them what needs to be done (replace clutch and cylinder). With information like that, many people will give you a quote over the phone.
I would not expect that kind of repair to go over $1000, considering a clutch will run typically $250 for parts and the cylinder is probably in the $100 ballpark. A $60 per hour shop rate at 8 hours will drop labor at about $480. Some chain shops (like Big-O-Tires) have shop rates at $75 per hour, and dealer shop rates are probably even higher. I would try to find a locally owned, clean, yet not hole-in-the-wall place to have the work done. I found a shop near me called "Little Garage", they do stellar work, lowest shop rate in town, some are even factory trained guys who got tired of working at dealers. I am sure you can find something like this near you, and it will be worth a couple of hours of looking if it saves you a buck. Or a few hundred.
A co-worker had the clutch and cylinder replaced on his Jeep Cherokee just a few weeks ago, and as I recall he told me it was in the $750 range.
