I didn't think the camo plus black half-radome scheme was still used after the TFR introduction. No doubt someone will point me towards a pic to prove me wrong.
I thought you were right Sooty, but......
I have just had a look at the colour plates in McLelland's book, and XM595 was painted in medium sea grey/dark green uppers, white underside and the black half underside radome with TFR fitted (27 Sqn, August 1971).
Also, XL444 is very similar only with the TFR dome also painted black along with the radome (as NEAM have done) - this on 617 Sqn in 1973.
I think the only non-authentic part of what NEAM have done is to apply high gloss black on the radome - it should be matt, but I appreciate gloss will last longer.