Oratex makes two versions of their fabric. One has a black backing that prevents light from shining through, thus hiding the internal structure. The other has no opaque backing, so light can penetrate the fabric and illuminate the underlying structure. The fabric is available in two weights; for a Dakota Hawk you could use the thinner Oratex600, which is suitable for aircraft up to 600 kg (1,323 lbs) gross weight. The white, non-opaque fabric would be best at showing what's inside, especially if the aircraft is displayed with backlighting. That said, hanging the aircraft from the ceiling with no lighting above it probably wouldn't show much of the structure.

The Oratex distributor for North America is Better Aircraft Fabric, in Anchorage, AK.