I get the fact that you don’t want to set yourself up for failure so to speak. At the end of the day, unless you spec something truly tacky, you are going to be fine. Lambo has a following that loves the “look at me” experience and also a group that prefers more subtlety. So the good news is that whatever you choose for your spec, will have a strong buyers group!
Go minimal on alcantara. It’s not your friend in a vehicle that will see more use than it’s 2 seater siblings. It just won’t hold up well long term in most cases. Nor is it really the expensive premium material it’s perceived to be. Get the best stereo system. On down the road the exterior can be wrapped. Whereas people rarely customize and swap out interiors. Carbon bits are cool, but for the $$, other options have more appeal at resale.
At the end of the day, choose what YOU love and you won’t regret it. That’s really the only way to own a Lambo.