Idk if the kit has changed, but my first lift in 09 was the 3" kit with full leaf packs.
it didnt come with and control arms or track bar provisions at the time, and it worked great for me for about 2 years, when I wanted to go bigger. then I went long arms, and sold the kit.
if your going to sat at 3" forever then you could get the arms. but im kinda happy I didnt. factory arms are probably pretty cheap at the junk yard if they get bent up too bad