I don't know what to do. What do you guys recommend?

I bid on 2 cacti on ebay and won the auction 2 days ago. Then I realized I will be on holiday for 2 weeks from next week: silly me. If seller will send them this week I won't be able to receive them and they will be withering away and probably die in some postoffice till I return. I asked the seller 2 days ago if he would be willing to ship after 2 weeks. Seller hasn't replied yet. I haven't paid yet.
What should I do? Wait for his answer before I pay? What do I risk by paying late? There does not seem to be an ebay policy towards non-payers as far as I can see. In case a buyer does not pay the seller will get the opportunity to relist without incurring seller fees again.