Purchasing leaf cells on ebay?

[TurboQ]

I’ve been lurking in the shadows reading up on all these conversions. With my Trojans in my 09 Precedent on their way out I’ve been browsing ebay for 7 cells to do a conversion. I’m coming across a lot of offerings that range from 60% to 75% capacity ratings (haven’t found any higher than 75%). Are these the cells everyone is purchasing and using or am I shopping in the bargain bin aisle here? I’ve read several threads on the conversions etc but I’m uninformed when it comes to the specs on the batteries being posted. Thanks