I was given a bottle of this wine as a gift and know nothing about it. How long should it sit before drinking? How much would it cost to replace it?

Here's what I found after a quick check Goodle:
Chateau Lynch Moussas Pauillac 2000 - Google Search
Seems to be a fairly good selection.
Did you say thank you? :)

This is an imported french wine, euro 24.- probably more here seeing as it is imported. You can probably find it in any good wine establishment. I wouldn't let it sit too long before drinking at room temperature. You should never let a good wine wait, enjoy it now.