Anne,
I realize this is a bit different to the approach you're thinking about but maybe it's of some interest. I "re-packaged" my nanoVNA-F to address some of the issues you mention, and to provide some "saver" connectors. Although the nanoVNA is essentially a disposable item I decided to give it the best chance possible at a long and consistent measurement life; I've attached a picture to show the general idea.
The plastic instrument box is spare from another project and I hinged the lid using hardware store small cabinet hinges. The VNA is mounted using velcro and the bulkhead adapters and patch leads came from the junk box or eBay. I often use the unit in the field with a laptop, most recently for some LF/MF antenna work. Although probably unnecessary in the portable setup I did, as a matter of practice, include a small toroid choke (type 77 material) for the USB lead. Finally, I couldn't function without a decent stylus when using the VNA stand-alone.
All of my external systems under test have PL259 or SMA connectors, hence the choice of bulkhead adapters.
Best regards,
Peter.
Peter Hall, VK6HP/VK6MJM
