Welcome skygryph, and enjoy lurking here at the forums.

I looked at the pleo and without a battery, it is hard to say if it is a hardware issue or something else, like a bad battery . I have 27 Pleos, (22 Ugobes and 5 RB.) Of those 22 Ugobes, one is not working no matter what I do, so perhaps bricked and one will only run skits but is perfect otherwise. I am not a great operation system installer and it is possible the one that I can't get to work, that used to just needs better hands to get it working.
The biggest problem and risk I see with any pleo on ebay right now, is that there are NO Li Polymer batteries that can be purchased anywhere, I know as I sell them here on the fourms, at Nova's neccessiteis and they have vanished in thin air. I do not know where you could even get one to try out on this pleo or any other pleo so unless you know where you could get one, or know how to make your own battery, It would be kind of useless to buy one. I also think though that this pleo will go up in price as there are still three days left. The shipping though is very high, it should be no more then $20.00 and that would be for UPS. Anyway, just my two cents.
In the meantime feel free to explore here and find out and ask all you want to know about Pleo and Pleo rB.
RWM :cat-hug:and the Pleo township of the Redwoods