This is a case I designed for the Elikliv NanoVNA-H. Main body is approx 92mm x 58mm, so if yours is that size or smaller it should fit fine. Has enough room for calibration bits, usb cable, and the thru cables. You can even leave a bnc adapter connected to it if needed.
Two parts. One is the bottom. One is the lid. Easy Peazy.
The author marked this model as their own original creation.