I'm not sure about the names but they could but anywhere from 1-12 characters. Not all names are being looked for by multiple people. Once one of his desired names comes free he can just take it. That is, if it isn't being transferred or has been sold to someone on Sythe or on another site like Powerbot/MMO-exchange or whatever sites trade names. I'd say good luck, be careful with putting them up here straight away, you don't want a ban I guess.