Went to Bedford Autodrome yesterday for a open pit lane track day. Had a great time and embarrassed a few Elises down the straight

(not on the corners mind

) ........however, as I expected would happen my tyres, discs and pads are now all past their best and need replacing.
This morning I ordered GTT discs and pads all round as they seem to be recommended by a number on this forum.
That leaves me with the tyres. I've read good reports of the Kumhos, and have been quoted £68 a corner incl VAT/Fitting/Balancing (£272 for all 4).
Thats based on 205/45/17 non RFs.
Has anyone bought any recently and can comment on whether £68 is a good price, or if there are any othere tyres I should consider at this price point.