I don't really know if I have well understood your wish but:
It seems the only way to mount a cloak device is to declare it as a Countermeasure Dropper, but for make it to work you have to patch common.dll (a big thanks to Adoxa):
Offset (in hex): 139B74
change 905332 to 50DB26
Another patch is possible to use the cloak as internal equipment but it apparently never worked.
I hope this helps