It's strange that PL hasn't released an aztec set, considering how they have recently reissued the B. I know that Acreation had made aztec decal sets a long time ago, but unfortunately he moved from the "I'll send decals to people who pay me" business model to that of "Why bother sending people decals when I can just keep the money they gave me and rip them off?" Then he came back with "Oh woe is me, I'm just under so much stress" and more people sent him money, only to join the ranks of the people he'd stolen money from.
When it comes to the decals you print yourself from Starship Modeler, be careful of how they are printed. IIRC, I had tried test printing the Refit decals on regular paper. They just came as image files, so I tried placing them into Word documents and this just rescaled the images to fit the paper. It really pissed me off.