If the bow was sitting for a while, I'd have it checked out before really using it. You might need a new string also, make sure you get a Dacron for it. You'll probably loose 1 to 2" draw moving from a compound, so your draw will most likely be about 27.5 inches. As long as everything is OK with the bow, it should fit you fine. The 45#'s labeled on the bow is at a 28" draw. As far as aluminum arrows, 1816 or 1916 will probably be about right. I use Foxfires chart to get close.
If you shoot off the shelf, you will need to use feathers.