functional rocket body tube with fins

Just launched my first rocket on Saturday. Thinking through all the trouble(especially sanding...) I've gone through to make a personalized light-weight but sturdy model rocket, I decided to make this instead of doing equally fun homework.
So with an epoxy/fiber glass nose cone (and maybe a parachute and minor sanding of the fins), this rocket should be able to take the D12-7 rocket engine/motor easily and fly up high to the CUMULUS!!!

Once I got more time, I will try to use someone else's i