Do You have any idea for mounting bracket ??
I want to install it in 19" case with power supply, antenna switch and transport between house and summer house.

Me too, I'm thinking about making a go box for the Irish field day on 5/6 of September.
I have seen Flanged End Panel Kit form hammomnd:
https://www.hammfg.com/files/parts/pdf/1455TFBK.pdf
https://www.hammfg.com/electronics/small-case/extruded/1455
but that will require all holes to be drilled again.
Regards
Pawel EI9HEB