Update!
Locking nuts off!! Cost me £20 Couldn't argue with that, even though it took about 10 mins, if that.
'tools for the job' eh?
Yeap, called in County Tyres, couldn't help, no tools for the job. Didn't expect that, but they kindly sent me to another dealer who did!
Oversize special sockets, hammered on ( wasn't keen on that bit), removed with torque wrench.
Other option not used, special tool/ socket that fits into the area around the shape, then crank off.
Normal bolts replaced. Not sure if I will put locking nuts back on again.
Thanks for posts guys.