Yes, I think IMR is correct. The only way you are going to be able to post anything through ebay is by using Priority Mail international, I know the cost of shipping a 1 pd 4 oz package, ( the weight of a small Ucube Pleo egg charger and battery cost me $32.05 to go from the U.S. to the UK, and about the same anywhere else in Europe, The weight of a Pleo in box is going to be at least 7 pds so you are looking at a pretty hefty charge if you use the postal calculator you will see. Ebay does not allow any other kind of shipping unless it is Express. I used to use First Class Mail to try and save my customers postage costs but ebay did not have it listed and I had to do it on my own, It caused a lot of headaches with no tracking, people complaining about lost packages, etc, etc. so Priority Mail international was the only way to go and the standard.
If I was you I would reconsider the cost quickly before you find out you may be selling a Pleo for nothing but the cost of shipping and once it is done, it is hard to go back on and get negative feedback, but you can either end the add and redo it anytime before there is a bid, or just change the shipping and lower the price of Pleo. Good Luck.

RedwoodsMama