Hi 48-Alone-Is-Great.
My site has many color profiles based in photos, color profiles and info from books.
Some of color profiles don't have photos as base, but the info come from Japanese researchers based on Japan official documents.
About Shoho we have only two color profiles of A5M4 (tail codes DII-109 and DII-112), three A6M2 (tail codes DII-102, DII-104 and DII-105) and three B5N2 (tail codes DII-300, DII-302 and DII-308). Look on these links:
http://japanese-aviation.forumotion.com/t24-38-january-to-june-1942
http://japanese-aviation.forumotion.com/t19-43-coral-sea-battle-may-7-and-8-1942
About Claudes at Coral Sea I don't have any color profile, but maybe DII-109 and DII-112 could be there, because this carrier had 12 fighters on board, A5M4 and A6M2, and 6 bombers B5N2.
If these two Claudes were there, the only modification is remove the red tail and do the red tail codes, like this one (DI-116) from Ryujo. The info of this plane states about this changes:
"DI-116 was flown by a wingman of IJN carrier Ryujo, during Operation āCā.
The red tail called "hoantosho" (lit: safety paint) was adopted by the IJNAF from June 5, 1933 as a measure to make
the aircraft easily spotted when on water during emergency landings etc. It was officially abolished around March 1942.
COLOR PROFILE CREDIT: AirReview Magazine, October, 1965.
INFO CREDIT: http://arawasi-wildeagles.blogspot.com.br/2013/03/mitsubishi-a5m1-a5m2a-claude.html"
http://japanese-aviation.forumotion.com/t21-41-ceylon-raid-april-5-1942
This is the only info that I have.
I hope that this can help you.
Sidnei, from Brazil.