Depends what flywheel you have. LUK will only fit an LUK flywheel. And sachs will only fit Sachs fly's.
Just because it's not making any noise doesn't mean it's still good. Upto you, I know if I was paying to have one fitted I'd stump up the extra, as £200 for a fly now will be £5/600 if it goes in a month.
He has a very valid point and I was in the same boat as you. I couldn't buy these kits as they are oem replacements not for modified cars, maybe like 260bhp / 270lb torque tops. Hence why I chose the Awesome GTI one.
A flywheel won't cost much extra, and for a garage to fit at the same time as a clutch it won't even cost an hours labour more. Buy the Sachs kit (cheaper) then buy a Sachs flywheel (from the same site) and get a garage to fit the lot. It's a 4-5hr job to do a clutch on the LCR as it is, so get them to do the flywheel too.
I manage to get a local bag specialist down from £350 labour to £280 to fit the parts. So your looking around that mark - and always negotiate and ask for less/a deal.