Of cousrse there was never a Ryan 32. I've called this airplane "32" because it was built for a 32 engine ( I also have a Ryan 60 ). Originally it was designed by Charlie Parrot and published in American Modeler in 62. Thus it is elegible for the Classic event. This airplane was built for the Vintage Stunt Championships in Tucson 1998. To be able to transport it via airliner it had to fit into not too large a box. This reqired a take-apart configuration with separate fuselage, wing, tailplane, and fin. A OS 32 was installed. Since there's hardly any Classic activity in Germany the airplane was never flown again and resides in an aviation museum now.  
The dimensions of the box are dictated by the dimension of the largest part - the wing. The height of the box depends on how clever you can stack the parts one upon another. A box was readyly available from a previous overseas adventure. It is made from 4 mm plywood, strengthened witn 10 x 10 mm spruce spars. The airplane parts are held by some kind of formers, cut from 5 cm styrofoam. The cutouts are slightly larger than the pieces they have to support. Narrow stripes of self adhesive soft foam rubber glued to the cutouts of those formers keep the parts in place, yet allow them to "give" a little when the box is being thrown ( it WILL be thrown !). Inside the box is a small compartment for storing accessories, tools, lines, etc. From experience I would recommend a stronger box material. But you should consider the maximum allowed weight in airliners. And for a two-model-box you might be forced to hire a porter. My box fits even in a small rental car. It has already seen big parts of America's West from the driver's mate's seat.
  Placing a funny cartoon character on the box seems to get the attention of airline porter staff better than the usual "Fragile" sign. At least I've seen some of them smile when seeing my box.