I had the problem that the Couplers where laying all over the floor. So i made a solution

Print in PLA or Other Filament. I used Support for the RJ45 Hole. 

A Mount / Holder For Telepost inc LPC Coupler.

LP-700 / LP-500 Power / SWR Meter

**Last Update added 2 new versions without the RJ45 window with or without holes. Maybe if you have a LP-100 you can drill holes by yourself.