Europa sport launch wheels
Question re: honwave launch wheels
Since you already own them, without any major modifications I would try using a little rope to hold everything in place and see if they are usable. The super large zip ties are strong and some Gorilla/duct tape could keep them from moving. Using the zip ties you could put a rope down low across from one wheel to the other, which would keep them from spreading out apart. Then use another rope, or maybe the same one all the way across, mounted just above the tyres to hold the wheels from flopping inward. Zip tie the rope to the stainless legs just above the tyres. Tye to the upper part to the top of the tubes. This should be pretty easy to untie and remove from the topside, then you just have to deal with them as normal, but your flip up option might be gone, or it may still work, although it will have the rope still attached. You could put a quick clip to the rope that goes across on one side. You could leave them tied to the boat so you don't drop the launching wheels.
Crappy drawing but you might understand better what I mean. The green lines should go around the outside of the tubes!