I don't see any problem with asking for 5k. Most anyone can make that amount in about an hour in FoW easy. Even faster if you get lucky. Last night I went into FoW for the first time in several months and did just fine. I paid the 1k to get in for our group and ended up with 3 shards after a couple of hours. Just about everybody in the group had at least 2 shards, which will easily sell for 4k each. There's no reason anyone who really wants to be in a good guild wouldn't pay 5k, I'd pay 10k or 20k if the Nudists needed it.