Hi again
I understand that's is an issue to handle a big bird like this. The small Hawk is not a problem, but I don't like to turnaround it every time when I mount the wing.
What I have understand the bigger one have a plug in wing and it's little easier to handle in that way.

For an example we have design a JA-37 Viggen in scale 1/4,5 that we have started to built plug to. In this aircraft the landing gear are mounted far away from the fuselage and in front of a very thin wing. A nightmare for model aircraft designer. So we have decided to use only one landing gear beam/bracket made in carbon fibre that goes horizontal from left to right landing gear through the fuselage. And the wing just goes over this construction so that also works like a wing tube. In this case the aircraft always stays on it own wheel even when the wings are of and it's easy to roll of a trailer or a van. The second advantage to do like this is that you don't need design the wing to take all the load from landings etc. The other thing we have to decided to do, is that the front section is easy removable with the nose gear still attached to the fuselage. This will shorten the aircraft with 90 cm when it's in the transport mode.
I have never seen this type off solution yet in a model aircraft for do the transport and handling easier when the models gets bigger and bigger.

/Jonas