If you poke around on the internet, you can find dimensions and detailed construction information for the revetments. There were a couple of misconceptions I had about the structures:
- They were NOT painted green. A friend who was there during the Vietnam War informed me that they were steel or dark gray, like the photo you posted. I always thought they were O.D. because that's what I usually saw in dioramas.
- They were not filled with loose sand or dirt. The construction of the sheet steel walls to the tarmac was not sand-tight and would have leaked FOD all over the place. Fill material was bagged.
- The walls were thick! About 6 feet. I was used to seeing lots of dioramas with walls that would have scaled out to maybe 2 feet. I thought that was the norm, but no.
At 1/32 scale, maybe you could set up rows of square wood strip and vacform the wall material. The revetment system was modular, so if you have a halfway decent overhead shot of parked aricraft, you can count the posts to figure out the total length you will need.
HTH