For anybody local to the Fort Worth area, I purchased the sand as well as the gravel from: https://goo.gl/pz71PC If you are not doing as large of an area then both of these materials can be purchased at The Home Depot in the gardening section.
In this video I tackle how to build a paver seating area for the fire pit as well as two paver walkways. When combined it turned out to be a huge area that needed paving, close to 400 sqft. In the video I explain how I dig up the ground and remove all the dirt in the area. How to treat the area to cut down on the amount of grass/weeds growing in the future. How to add and compact the base material which consist of crushed stone and sand. Then how to lay down pavers to make the actual seating area. I also explain how to cut pavers using two different methods. For more details check out my website.