Starling Buick GMC Stuart

Took my truck in for brake service and was told I needed new breaks, master cylinder and booster. It was going to cost $1600. I told them to forget it. I talked to another mechanic and he said all I needed was the master cylinder and the pads are still very good. He charged me $100 and I spent another $100 on the parts. I bought the used truck from Carl's and they told me they would detail the truck and do paint touch-up. When I went to pick it up the interior was filthy and it looked like a small child scribbled crayons on the paint. People still ask me "what is that on your paint". If I could post a photo I would. When I confronted the salesman he got real mad and said "its not new so live with it". I'm looking for a new GMC truck now and I will be buying elsewhere.