There is one other way. I have bent shapes and laminated standard 1/4" luan to make combat shields for the SCA - A renaissance group that really fights hard. Generally not open to the public. Anyway, never to this small of a radius. Pretty sure it cant be done with normal means.
I have also used bendable Luan, but not to this extent. Anyway, I have used this product and curved it on frames. What I haven't tried yet was to laminate 2 or more pieces together. Even though the lamination layers individually bend readily, when glued together in a bent shape, they should retain that shape. There would be a tension against all of the layers and that should put them in tension with eachother similar to a torsion box or an "I" beam. Each layer of I/4" could be built up to the final thickness. the more layers, the merrier. These layers could be built around a box/form and then the box removed. I'm too lazy to look it up (actually poor internet connection) and find how small the bending radius is. There was a dealer in North Houston, Tx. area. Cant remember the name but I'm sure he is still in business. He should be able to tell you all about it. Then again, it might not work, Just making an educated guess. call a dealer r manufacturer to find out.
When the form has been fully laminated. it could be covered with a finish veneer. Then the cuts could be made.
I got lucky on internet connection. Here is a link: https://www.columbiaforestproducts.c...nding-plywood/
And here is a short note:
2 ply construction: Rotary peeled hardwood back. Thin veneer face.
3 ply construction: Rotary peeled hardwood outer plies. Thin veneer inner ply. No face or back.
Thickness: 1/8″, 1/4″, 3/8″, 3mm, 5mm, 8mm, 16mm or contact us for other sizes.
Panel Size: 4′ x 8′ Long grain or 8′ x 4′ Cross grain.