no, it isn't hard to compile. It's just 4 commands, to actually compile it.
And the entire process is outlines like this.
1-download fresh kernel
2-extract kernel in /usr/src
4-compile it (with 4 commands)
ehmmmm, there's a very nice How to in Linux.org but for some reason the site seems to be DOWN!??, how weird.
anyway, I found this other guide line, it's pretty ok....you can try it too.