Alright, thanks for your help. This morning I hooked them through, soldered them up and shrinkwrapped them, with the end result looking like this:

IMG_20170713_123526.jpg

Tested it as well, and the setup is indeed fine. Very nice!

This conveniently brings me to two further conundrums. The first one is regarding the link:

IMG_20170713_135246.jpg

I'm thoroughly puzzled as to how to mount it in such a way the socket doesn't move upon the link being removed or put in. Currently it's just floating around, which needs to be addressed. But how? I tried screwing it in, but it kept moving about.

Conundrum number two is regarding placement of the receiver.

IMG_20170713_135523.jpg

Current placement has it ~very~ snug between the right motor mount and the servo, but I fear this will make it rather susceptible to shock damage. It's mounted on velcro so some movement is possible from front to back, but sideways it can't go anywhere.

IMG_20170713_142028.jpg

Alternatively, I also turned it around to give the antenna more room, and I also placed it on its side. This removes the problem of it having no space to move laterally, but then it leaves not that much space for the antenna.

So what is wise?