I did 5 sprint type track days and 4 laps of the ring in my Is-f, and never had a hint of understeer. It was pretty impressive I thought given its weight, just wished I d managed to get to Donnington in it.
I was an IS-f owner, and love them. I'm only interested in the IS-F so very rarely post outside the IS-F section. Why is my opinion less valid? Anyway I'm out if this is the way it is.
The original finish is very smart, its has a very glossy, mirror like finish to it, none of the refurbished wheels I have seen come close which is a real shame. The colour is close but this mirror like effect seems to get lost.
I've purchased the dealer versions a few times and have always been happy. When I did have to claim for the IS-F :-( the process of claiming was easy, and in fact I was in receipt of funds before my the insurance pay out cash landed.
2010 is the pivotal moment for the ISF as the LSD was added, there were other small changes each model year from then on till the end. DRLs were a year later I think. It depends what's important to you.
They have definitely gone up since I had mine.
I had the 70K and 80K while I had mine. and it was well over £100 less than that for the 80K one in 2013
Given its history its still worth well north of 10K. The car was in brum/Walsall when last advertised with these exact pictures. The seller joined ebay on the 12th February 2016 and has zero feedback. coupled with the daft price, there's enough red flags for me.
By all means carry on, but I bet he'll want payment by bank transfer when you agree a deal.
Off course I could be wrong and be too suspicious in my old age!
Are you going to get the paint sorted, those swirls are really bad. A full correction will be pricey given the damage but with that colour it will look epic when its done.