The Dune Wishbone Counter Stool in Cherry is one of the stools that I would like to buy but it is stated that assembly is required. What does that mean in regards to this chair since so many stools are already assembled? We are not very assembly savvy and need to know before we purchase how difficult it would be to assemble this stool. How many pieces are there to assemble and what is necessary to assemble this stool? I would like to order more but will only start with one.