Hope this post will be of some use.
Had my L494 for six months and decided to do an interim oil and filter change. Noticed one of the four rubber grommets that secure the engine cover was missing.

Land Rover and the independents don't list these grommets separately but are very happy to sell a complete cover for £200+.
That is blatant profiteering as the grommets are a simple sliding fit into the cover.

Luckily I found a seller on ebay (firstfordparts) who does stock and supply the grommets, £12 for a pack of four including postage.