I'm K. Wada, same shigeru Aoki group.
You ordered an estimate about a lot of BNC connectors.
What do you use them ? (List No.1)
If you use for repair a cable, I think you change better a new BNC cable than repairing (time and cost).
I recommend change as below No.4.
The cable length is 2m. If you want it long cable, price is somewhat expensive.
Please consider good change.