the best way to move the wings is to lift them by the boom end using the lifting tool or
use the goblin engine lift frame with chains on and pick up on boom end and fwd wing attachment bracket#
then a couple of people can just steady the wing.
Final way is to remove small access panel above undercarriage bay and you can then access top knuckle
and leg attachment point and you can put a sling around it the wing then balances fairly well.

If you transport flat you are actually breaking the law.We make a frame like two T pee shapes linked together
so the wings stand on leading edge about 60degrees towards each other.

We transport them often on a 15 foot car trailer with wing root fairing overhanging the back
BUT remember all the weight will be at the back so you need a load of
drums full of water at front of trailer to balance weight out.
If not it will nod like a dog in your back window and steering could be a challenge (Officer !!!!)

If you try to move wings with slings around them you will knack the
dive brakes and ailerons as some comedian has done with a set of ours
so we have to change the control surfaces.

Better still use a wagon with a Hiab.