Looking for 2003 and 2005 first growth bordeaux

I am new to this forum and if I am breaking any unwritten rules of conduct, I will apologize upfront. In addition, I will say that I am a novice to futures and buying first growths. I have tasted them and love most of them, yet I cannot say that I have bought any in bulk.
With that said, I am looking for a 21st year birthday wine for my 3 yr daughter (2003 vintage ) and my 1 yr old son (2005 vintage ). I wish to purchase 3-6 bottles of each and I have friends who may pitch in for the rest of the case if necessary.
I am looking for the best in the first growth bordeaux category for each year. Obviously the best now does not matter; the best in 2024 and 2026 is what matters (and I don't have a crystal ball ). Some folks will tell me not to waste the money and maybe there are better alternatives for less. I am open to better alternatives yet I will be partial in this gift to the first growths. Any help or guidance will be appreciated. I can be reached at princear@bellsouth.netfor further details or I will continue to come back to this forum. Like I said, I don't know the rules, but I am willing to oblige by them once I know. THX