Well, the good news is that Lexus parts direct have a sale.
Check out how cheap a wheel is - https://lexuspartsdirect.co.uk/product/lexus-lc-21-inch-type-wheel/
Yes, I'm being flippant, but the point I'm trying to make is that when things break, the fix may me extortionate. All LC500s (irrespective of value are £100k cars)