If you really mean May of 2005 then it a little early since we can't book home resorts further then 11 months out. But if you mean may of 2004 then that would be okay. Also, are any of the 5 people children? If so, can one of them sleep in the porta crib? If not, you will need a 2 bedroom.
A Studio for 7 nites would be 123 pts
A 1 bdrm for 7 nites would be 252 pts
A 2 Bdrm for 7 ites would be 314 pts
If you are talking about 2004, I will be renting my VWL points at $12 pt. Let me know if you are interested.