1992 Honda z50/125 custom build

I have a custom built 1992 Honda z50 with a manual 125 4 speed 125 engine in the z frame. My old mechanic built this in his free time and it sat in his shop for a couple of months before I bought it. He replaced basically everything from front to back. The motor I believe came out of an SSR maybe but I am not sure on that. This thing is a little torque monster. Very fast and fun little bike. I'm looking at selling or trading it because I just don't ride it much anymore. I'm downsizing the collection some. The seat is the only thing that could use some love. $900 Located in Decatur/Huntsville AL