Hey Mick,
You don't have a lot of options unfortunately

Big car (I have an Alhambra. I can fit my Ka8, ASH25, and 2 or 3 4m gliders.
Wings for the Ka8 goes on the ceiling, everything else on the floor. I was thinking putting a shelf at the back, as ultimately, you only fill the bottom part of the car, never the top if you see what I mean.
Roofbox. I am not too pushed I have to say
Trailer. That is what I would do if my stuff is getting any bigger. Made for purpose one, low and long, but this can be pricey! Unless you modify one. Cons: you need space to store it.