Don't be put off by "clutch Issues"? on the diesel.
I and many on here have never had a problem with it.
My 2.2 type s gt, was as good as gold from the day I bought it to the day I sold it 4 years later.
AND - it's still going strong with the present owner.
+ you will have the torque for not having to change down all the time.
Obivously I was referring to the Type R when I was talking about the clutch.
And it's not a "problem". It's wear and tear, a reality on any car that has a few years on its neck, just like changing the timing belt for example but luckily Honda uses chain (Doesn't mean it can't jump out a notch though).
The latest type R is not new anymore and the clutch will often be worn out because it's a performance car that is driven hard.
When I looked around for a EP3, three out of four had worn out clutches.
I would ask if the clutch have been changed and if it hasn't it would be a good argument to bargain with the seller if you feel it's on the way out.
Dip the clutch when the engine is idling. There shouldn't be any change in the sound character of the engine but if it does then it's on the way out and I would try to bargain and walk away if the seller won't budge on the price.
It will be 10% of the whole cars value to change it. It's also normal that bushes need to be replaced so I would testdrive it "hard" if I were you to get a feel how it's holding up.
Oh and one more note.
The diesel ain't close to the Type R in "feel" as stock so don't buy it if you wanted a performance car that is real fun to drive.