NR7101 - I’m missing some parts

I’ve got a NR7101 second hand, however it came bare.

A) The clear waterproof cover with the screws for the sim slots was missing.
B) The black plastic screw-in cable gland grommet assembly is missing.
C) I have no brackets

I've tried contacting the parts department but no response yet.

Any ideas where I can get these parts from? The most critical are the clear sim cover and the black cable gland fixing.

I’ve looked online and can’t find much to help. Any ideas people?