Thanks for that.
I've since found two other sideviews with other interpretations of this aircraft, one almost complete oversprayed with the RLM76.
This sideview looks more believable.  Not sure what the mottle colour might be, can't imagine its RLM76 tho.
https://www.asisbiz.com/il2/Me-262/K...r-1945-0A.html  
At this stage I might as well turn it over to the kids to finish.
https://www.asisbiz.com/il2/Me-262/KG(J)51-9K.html
Thanks again everyone.