For removal of the wings you will have to keep at least some servo plugs just as you would in a simple monoplane it would be normal to keep at least one servo plug for each aileron servo to facultate quick and easy wing removal.

With that airplane for wing removal it would require at a minimum of at least one plug per aileron servo in addition to the actual plug into the rx.
I routinely use soldering for servo harness or extension etc. to eliminate an excessive number of plugs. This is where folks get into trouble, stacking on numerous various extensions and Y's. Where extranious plugs are problamatical is when its just a connector that is never unplugged and buried in the airplane somewhere, these are most likely to corrode and cause problems at some point. A plug that is often unplugged for transport is less likely to cause problems at some point.

With that airplane if I were not going to use one channel per aileron servo (and most won,t) I would most likely use two two aileron servos per channel. In doing this I would use a simple short Y chord (you don't even have to solder a custom chord) into the Rx, right or left channel and the servos I would splice in and solder extentions of the perfect length to facultate easy wing assembly or disassembly.

John