I built this quadcopter from scratch using carbon fiber tubes and sheet for the body (from an Ebay seller in China,) 1000 kv brushless RTF Quads Red Special outrunners, 20 amp ESCs, a PDB and Multiwii Pro2 FC, as well as 9 x 4.5″ props all from RTF Quads down in Florida. It also utilizes a capacitive power conditioner from HK and it will be running a 2200mah li po also from HK. It is held together with 6-32 x 1″ stainless cap screws and matching stainless nylon insert ESNA locking nuts.
https://www.cncmachingparts.com/
Jiesheng Hardware located in QiaotouTown Dongguan city Guangdong Province, now we has all kinds of imported machines, CNC computer lathe , computer processing center, precision automatic lathe, screw machines.