RE: Kits cut in carbon fiber???
Looks like the cost of caron fiber tubes are between $4 and $6 per foot. Rods are a little less expensive (about $0.5 to $1 less). Wood dowels (cedar) run about $1.5 to $2.5 per foot, so a little less expensive but not as strong.
Again, would be fun to try and build one.
Jeff