Genuine T480 Keyboard?

I've ordered 2 keyboards now from eBay that were listed as 'genuine Lenovo' and both were cheap Chinese aftermarket keyboards I could've bought from AliExpress for a tenth of the price.

I'm aware I can get one direct from Lenovo but it'll cost more than the laptop is worth! (Might be exaggerating there).

Anyone know where I can source one? Must be backlit.

TIA