The only Mack logos that I know of are the KFS P/E set for the R, F, & Superliner trucks (maybe the Cruiseliner, too). It does have the Thermodyne scripts, though.
As far as Caterpiller logos, yes, it's a licensing thing. If you print ANYTHING with Caaterpiller or CAT on it without their permission, they will come down on you like an 800-lb gorilla (or is it guerrilla, I always forget). If you're looking for Mack filter logos, check with Ben Wicker over at Class A Resin ( http://bwicke9.wix.com/class-a-resin#!high-quality-decals/c20es ). Hint: take a close look at the Miscellaneous Filter Decals. You might find the other ones.