I forgot to mention that the composites require specialized tooling for precision machining. The cutting tools should be solid carbide because it's quite possible to ruin a new high speed steel cutter in a few cuts. If you're only going to build one, then HSS tools may be adequate; if you decide that you've got the bug and want to do a second or, God forbid, a third or fourth, then you will get carbide from the beginning and save bucks and tempers. BTW, wear a clean disposable dust mask ALL the time when you're working on it; they are disposable but your lungs are not. bye again, sid.
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