I think the tablecloth hammock is a great idea and easy to do. I made my first one out of 1.9 ripstop and it was fairly easy (I had never sewn before). With that being said, learning the machine was a pain but after that was done it went well and its a skill that is really helpful. I would try to save the money for a set of whoopies if I were you buy or make, your choice. The tarp can be what you make of it. Cheap poly tarps work just fine, I suggest something close to a 10x10. If you haven't checked out Shugs videos I would strongly encourage and look into the marlin spike hitch. One last piece of advice... when I started I had a really hard time finding good material for tree straps. I finally used ratchet straps and cut off the metal. Just pick a soft and silky feeling ratchet straps. They are usually the expensive ones.