What are my rights regarding furniture that has not been finished after almost 2 years?

Question Details: I had a guy do a couple pieces of woodwork for me. I liked his work so well that I had him do another piece. It was started 2 years back but still is not finished; I just stopped calling/texting him. He messaged me last week saying that he was going to stop by and finish it and to get a check for materials. He dropped off 1 shelf but not anything else that went with it. It is usable so I have been using it but it is not finished. Since he did not finish it in a timely manner, can I refuse to pay it and make him come get it? Also, I understand that he spent money on it so if he is charging me for materials. Can I ask him for an itemized list of all the materials? He dropped the bill off for $800 and it was plywood, a couple of nice pieces of lumber, drawers, and 1' x 4' pieces of wood. I do not need to have this piece anymore and I have "stored" his air compressor and nail gun at my location. It has been almost 2 years.

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