ADAM
WELCOME to the hobby ! .Now , that said I have to tell you this .First off .There are SOME large kits out there that snap together and are pre-painted .They can be found at some HOBBY LOBBY and TOYS-R-US stores . I don't really think that's what you want and they are almost ALL aircraft . Am I correct ? Yes , all models nowadays ,of the type you mention , require paint and glue .
The decals are usually always included .I think in over sixty years of doing this I got only one kit without them .Then ,back in the days of REAL customer service I called the company number listed and they sent them to me .You need to research VERY CAREFULLY what it is you want to build .If you've NEVER built one before may I make a recommendation ? The guys will rip me ,But , if this is your first model , GET one of LINDBERGS ship kits .They are not perfect , BUT , if you make a mistake ,you won't be out a LOT of cash .My last TRUMPETER kit cost me over one hundred twenty nine dollars ! ! So there you have it GOOD LUCK ! Tankerbuilder