Clutch is not too badly priced new.
volvopartswebstore is the best price I found when I was looking but DVS price was not far behind, perhaps with the exchange rate sitting where it is at the moment buying one ex US is more expensive and may make the DVS one a better option.
This is the one. somewhere around $400 landed at the moment.
http://www.volvopartswebstore.com/products/Clutch-kit/1125064/272218.html
I am not aware of a 1 piece flywheel anywhere but they have to be around.
The H vs L debate seems to be a big deal to some people, having had both in my car I think the difference is quite small, definitely noticeable but small. If i had both sitting in front of me for the same price I would go with the H but would have no hesitation running an L if that is what I had.
