From the auction:
For every 1K under 25K on the final sales price will cause a delay in shipping by one week. Please do not bid if you have a problem with this!
Creative, but really?
I'm not sure you can actually do that and not violate EBAY ToS...
It would totally violate Ebay ToS.
You have to ship it as soon as the buyer pays. Unless you have multiple days to "ship" it set on the auction.