ST, here, my first new one also, so just makin' sure I was not biting off more than I could chew for doing it by myself. Still, got what I needed and everything I wanted!!!
I also have the 05 Laramie and a 1999 Laramie. Love both of them. The 99 has 207,000 miles on it and the 05 has 82,000 on it. No problems with either of them, knock on wood.
add R/T as a trim level. The sticker has SLT with R/T as an option on the list...... and my '06 is an SXT also not listed so I am the oddball out of the bunch :hah: