Without a lot more information about your design and the expected loads I wouldn't want to start recommending a particular layup, especially when another persons life may depend on it

If you are new to composites and don't have access to/experience with some decent software I would be doing some serious testing. (I would be testing anyway)
Get some braided sleeve, good quality epoxy laminating resin and have a go at some wet lay over a mandrel. A vacuum cleaner extension tube makes a ready made mandrel. Because most are tapered release will be easier.
Wrap a layer of paper around the tube followed by some flash breaker tape, this is your releases agent. Carefully slide the braided sleeve over the mandrel and stretch it out so it conforms to the tube. This is where you can experiment with the number of layers. Start with say a piece 1/4 of the tubes length, then one 1/2 its length, 3/4 and then finally 1 or 2 full length. This will give you the tapered wall thickness I mentioned.
Wet out the fabric with the laminating resin (this is the messy bit

) Once your happy the fibres are wetted out wrap the hole thing in heat shrink tape. Carefully go over the heat shrink with a hot air gun, the tape will contract and consolidate the laminate. Don't use too high a heat or the tape will begin to crinkle (cant think of a better word at the moment)
Once cured remove shrink tape and the nice new cf tube from the mandrel, the paper and breaker tape should make this easy and test the thing to destruction (if you can

)
I know a straight tube may not be your final profile but this will give you some hands on experience with cf and how it behaves. From there you can play around with the layup/materials all the time gaining experience (and having fun) without a huge outlay.
Have a look at the EC fishing pole repair tutorial to get a better idea.
Something to remember as far a testing goes, there is big difference between hitting something with a part made from cf and something hitting a part made from cf.
Warren
Carbon Copies Ltd