Hi Gary
Simple rod building is not very hard. The main problem is the inflated prices being charged for rod building components. Usually the bits cost more than a ready rolled rod from one of the large manufacturers. I would only look at building your own if there is nothing already available or if you are looking at the satisfaction of fishing with something you have crafted yourself. You can go as detailed and intricate as your patience and eyesite will allow.
Ian Miller has a mag out called something like The Australian Rodcrafter with everything you will need. Alternatively some US sites like Mudhole have a lot of info.
Cheers
Neil