Go with immersion kit, I used boscam for a year with non stop static and signal loss.
I've just spent £400 on immersion kit and I'm very happy with it, yet to test the range with this weather we are having in the UK.
Might get a submarine lol
Ive used all of the above and all have a good service but the best service i have had are from the 3 below
UAVSHOP Quick delivery's and very helpful on tech side
BYOD Quick delivery and helpful
Heliguy Quick delivery, Great comms and deals plus a super tech service.
I will alway go back to...
Futaba for sure DJI like Futaba kit.
It might work with more radios because its AV and Control RX you install on the aircraft i think so that mean you don't need a Futaba or Spektrum receiver ?