We're progressing in our guild, so we would be very reluctant bringing someone with 505 in even though you're a great player. Unfortunately, we can't afford to take in a player on a test run since we're an unstable 10man guild, so there's one reason as to why you're not getting a guild.
We've got 12/12 and we're about to start on heroics, so we really want people geared for it in our group.
HOWEVER, if you posted logs, there would be a very significant increase in getting in since we have very competent people that are able to see if you know your class properly. If it turns out that you're actually a very good player, then it most certainly would be possible for us to accept you into the raid group and gear you up. (As long as our 1+1=3 raid leader would listen to me)