That's what we used. As with most tarps/tents, the stakes leave something to be desired when it comes to durability. We got MSR Groundhogs.
I own a few that I am more or less happy with. The 3mx3m from DD is a popular choice and shows up in quite a few YT videos. The Bushcraft USA storefront tarp is on order, and it shows up in more than a few YT videos. I also have owned the Yukon Outfitter walkabout, the Aqua Quest guide, and the Paria Siltarp. One of my more frequent hiking/bushcraft partners uses an SJK Satellite Tarp and she is very happy with it.
If you have access to a sewing machine, DIY is also an option. A tarp is pretty easy to sew, though I found the tieout reinforcements a little tricky at first--just practice a bit on some scraps. Ripstop By The Roll is a great source for fabric and other materials, as is /r/myog.
Yep, great size for a group up to 10 youth... or about 6 to cook in
About $90 on Amazon, https://www.amazon.com/dp/B06XJ7322N
A $10 blue tarp from Home Depot works fine too
Tarp:
Option 2 (more durable): https://www.amazon.com/DD-Tarp-3m-Olive-Green/dp/B005FPN7GE/ref=sr_1_3?s=sporting-goods&ie=UTF8&qid=1538601289&sr=1-3&keywords=dd+tarp
Quilt: http://www.hammockgear.com/burrow-econ-40/ (get a warmer one if you need it)
You will need trekking poles for the tarp/tent or save a few bucks and find a couple of sticks when you get there!
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Pack: https://www.massdrop.com/buy/massdrop-x-granite-gear-crown-x60
Now I'm looking at this tarp because I can get prime shipping on it and hopefully two day shipping. Any thoughts?