They dont have to be the KU36, KU31 will be ok if cheaper. They are only for pottering around on the street but if you can pm me the details for 2 x 265/40/17s (not sure if that size is available, maybe 255/40/17) and 2 x 245/40/17s or there abouts
Depending on price may end up going Federal simply because they have a 265 tyre (sorry OT)