This I just a quick and dirty mount for the Vannystyle frame using the DJI airunit O3. You will have to CAREFULLY cut your antenna tube to make it work. I have tested the fit of the antenna and it is good, just not sure about how the wires will run. I like this stubby design but might be able to rework it if needed. 

Please post a make pic or report back any issues. I included my .f3d file. I am not a designer I just fumble my way through things so don't judge lol.