I have heard the Herpa one is the better one to get, I had an opportunity to get one for $89 on an eBay auction in which the winning bidder defaulted, I passed on it because did not like the circumstances of the situation. I regret it, but not too much, it was expensive...
I thought GJ was pretty good at using the correct font in Landor subjects, but I guess not.
I think the only airline that used N749WA for passenger ops was Braniff, everyone else (and the list is long) used it to haul freight, and of course, it was the prototype Evergreen SuperTanker 947, which oh by the way is also going decent amounts of cash even after the recent release of 979...