Yeah, that looks like they converted a '12-'14 Japanese "Black Style" model (which became the '14 Std. in the U.S.). Odd choice because the Japanese market had plenty of versions with unpainted engines. The black fork tubes look a bit out of place too.
That's not to say I don't like the results. The Whitehouse kit with the Wyvern 4 into 4 pipes really look good together.
I'm liking the other kit I sometimes see, the one that has the 750 colors on the current tank and side panel, especially the gold and black stripped.. I guess I'm loving the shape of the current tank, Ithink it is one of the most beautiful tanks made.