I had an Exedy lightened flywheel. It weighed about 4kg I think from memory, the stock one was around 8kg+ ! If your going to keep the car for about 2 years and the clutch doesnt look like it'll last that long replace it. How many km's have you got on your car? Stock clutches last about 120000km on average depending if its had a hard life or not.

I was running a stock dc5r clutch with a K24 for ages. They're rather decent.

Just keep the hard launches to a minimum and burn outs, dont ride it etc the stock clutch will last for quite awhile.