First of all, you should know what hardware you have, before compiling your own kernel, so you don't have to add modules you will not need and will make the kernel bigger than needed.

Second, I can't tell about the speciallities for Red Hat, but all in all it's like the guy described, what you already wrote.

So what do you want to have explained from this guide? And there is a lot of page in the web dedicated how to build a kernel, btw.