The USMC MV-22 is the original, and a model of one in 1/700 is a fine starting point to get to either of the others.
The USAF uses the CV-22 for special missions and combat rescue. The nose has some sensors in it used for those roles.
The main external distinguishing feature of the CMV-22 is an enlargement of the front of the bulge along each side of fuselage, which holds extra fuel to give the extended range the Navy required.
Here's an article which gives broadside views of each variant. The bulge on the CMV-22 shows up reasonably well:
https://simpleflying.com/bell-boeing-v-22-osprey-variants-operators-guide/
Knowing what to look for, you can browse the internet for other images and angles.
I don't know what your scratch building skills are, but if you're up for it, you could try taking an MV-22 and adding those forward bulges. Voila, you have a CMV-22.
I also hope PE parts will be produced for CVN-78. I would like to see full hull 1/700 kits of CV-63, -67 and CV-59 (Trumpeter only has waterline kits) since all of my ships are full hull. For A/C I hope to see CMV-22.
I want to hope that a photoetch manufacturer will make a set specifically for the CVN-78 and USS Kennedy CV-67 and that Magic Factory will produce additional boxes of aircraft to populate the flight deck. Ford doesn't have (yet) F-35Cs or Stingrays, so it's desirable to produce a very nice model already. For the handling equipment on the flight deck, you can easily make up for it with the after market ones on the market. Finally, I agree, as already expressed by other forum members, in the request to Magic Factory to also produce the Forrestal class and the 3 Midway classes in the future (all different from each other)
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