Well.....
Lufia, Berekiah, and I currently have a 3s team at about 1575 or so, we usually hit the arenas monday night at about 11- Midnight ST.
Not sure exactly where you are or if that is doable.... but as disappointing as it may be to not get 5/5 veng....we are having a great time with the matches, it started off more as oo free gear, and has morphed (with ret goodness) into a lot of fun!
we have tried albeit passivly to get 5s going but usually theres not enough people on at that time. maybe in the week you can keep an eye out and we can get some more pew pew going on. I have never tried 5s, but I imagine that it would be quite FUN.
you may be able to get a piece before the season ends... but hey its practice for next time. I actually wish I would have known how fun arenas were a while ago, but ahh well fresh start at 80