I bought mine second hand for £25
Mate of mine breaks Disco's and he had a Solihull special vehicles Disco in 8)
Most annoying thing was trying to get the lower bracket in place as you have to put it behind the bumper and slide it from under the indicator across to next to the grill, every time it passed by the headlamp washer it would flip and spring out from behind the bumper. Most annoying.
The upper bracket that holds it in place screws into 2 holes on the front cross member that incidently are the same square holes that the inspection hole in the floor pan takes so if like me you had to buy 10 plastic lugs from LR and only used 6 for the floor then you are laughing as they clip straight in. Self tappered screw then complete the securing. I have some pictures I took when fitting them if you want them.