Welcome!!!
Start with 2016, GT 3555 (see Sipsey River for absolute best price), or wood in the 45-50 range. Use what ever is cheapest and easiest for you to build with your current tools. Assuming you dont have dip tubes, stain, paint, etc. that would mean either carbon or aluminum. Don't get too hung up on it, this isn't a permanent decision and I'd be money you'll move past this first set very quikly.
Use big feathers and don't get hung on all the tuning. As long as they don't kick noticeably call it good. Your form and release will develop a lot and now is no time to ruin your progress with a bunch of stuff that will only frustrate you and distract you from the basics.
In short...shoot, shoot, shoot! Work on form, release, and accuracy, and don't be in a rush to go worrying about your arrows, or your bow for that matter.