How does it work if a coin was sold or raffled to you that had one minted seat? Do i have the original owner transfer it on the site or something? I'm getting the coin graded so I would want my new seat to point at my 5 oz coin address instead in my account.
Not a big deal or rush, just curious what I need to do about it, since effectively, I won the seat attached as well, correct?

You want to point the seat from one coin to another? You can't do that. Minted Seat distributions are locked to the address on the coin.