The Rover has a few interesting quirks when it comes to wheels.
Lug Nuts
The rover nuts are kind of funky. They have a stainless steel cover on them that's EASILY damaged by 12 point sockets.
1) Purchase a 6 point 1 1/16 inch socket for removing and torquing the lugs.
2) Purchase an X style wrench. Here's one that works.
3) Keep a dead blow hammer in the back just in case.
Wheels
My rover came with a spare set of wheels. The 3 spoke style from range rovers will bolt right up to the Disco 1.