should need to replace the flywheel normally, I got a clutch and CSC for 150 quid for the same engine at eurocarparts T:
When you do a clutch on these its definatly worth replacing the DMF as well, as you may have to remove the gearbox etc again if it goes in the future, I am sure you can have it done a lot cheaper, Not sure if its worth a drive down and over night stay but these guys seem to know what there doing and for a very good price http://www.totallyt4.co.uk/services/mechanical/
is this including fitting? if so I don't think it's bad, I was quoted 650 pounds for new clutch and CSC fitted by a cheap bodge shop!
yes you can buy them seperately,from most factors,even on ebaybear in mind that if you go for a clutch only and find your flywheel is also shot, as I just have, then according to the garage you cannot buy a DMF separately, so now I have to buy a clutch + pressure plate + DMF kit :bhd