I built a top bar hive a couple of years ago, and decided instead to use langstroth equipment.
If you live in SE South Dakota, SW Minnesota, or NW Iowa, and would like to come pick it up, it's all yours. I live in Dell Rapids, SD. (Sioux Falls)
The top was built out of MDF. It needs replaced.
The picture shows my attempt at getting a nuc to move into the TBH. That didn't work.