I stumbled upon a mention of this company out of Niceville, Florida over on ARC on a thread about Pave Low helicopters. I went to their website:
https://www.blackops3d.com/And they have some interesting offerings, mostly for MH/CH-53s, with some other odds and ends. Like V-22 odds and ends...
So, I ordered two items for research purposes (1) Osprey Enhanced Bulkhead and (2) CV-22 internal rib structure. Both are designed for the Italeri kit (of which I have several).