He can contact the seller and ask if the seller is willing to give your friend’s contact information to his buyer.
Most will say no. Some will ask for a commission (5 to 10% of the new selling price is normal).
And then the original buyer can say yes or no. Unless your friend is very generous in his offer, the chances of a purchase are low. The exception being if the buyer was buying for resale, in which case he can list a private auction for your friend at a price which would take into consideration your friend’s lust for the item.
Doubling the price, even including the cost of shipping, may not be enough.
