CF and Kevlar are a bear to work with. You can't just lay it up like fiberglass. CF and Kevlar need compression in order to optimize the bond and strenght. Easy to do if your making flat plate...just sandwich them and add compression. But when you get to composite curves and the like you need to use vacuum bagging technology. Additionally, CF needs to cure at a specific temperature, meaning autoclaves (low powered oven) and the like. I've been working with CF for about 5 years now (making paddles, repairing racing boats, etc), its fun but messy and hella expensive. I'm just starting to breakeven.