i think the reason its at that price is the colour finding a white pre facelift Z is rather rare,
would i pay that for it hell no,
but then alot of TL cars most think are well over priced but he sells them
if it comes with a decent 12 month warranty, fresh MOT, 12 months of tax and a good service and any repairs needed ie bushes etc have been replaced thats not a bad price for garage sold car just depends where you stand with Cat C and what the Cat C incident was (we've had this debate before cat C could be water damage from a flood which in turn isnt that bad)
Edit should have read the add cat c for key damage i wouldn't worry about it, to be honest i think the white looks tacky might be the picture but looks like they used ford transit white not a nice pearl you get on some classier cars , imo it would be worth so much more in the Red the car came in.