Once you have the cart in hand do a little experimenting. I'll bet you can find a way to safely bungee cord the plane parts to the top/sides of the cart. Maybe you'll need to turn the fuse over and let it sit on the wing saddle. May require eye hooks in the corners of the top or something like that. Keep bungee cord pressure light so you don't crush anything. Maybe build holders into the top?
Better yet, buy a golf cart.