Firm doing the CNC is in Ireland, so not local, but he's a good guy.
@Andy, some of the internal mounts are 6082, the claw standoffs are 7075 and the frame is all 2024.

@Maxamus, Mantis 2 will be somewhere between 13.2 and 13.6 I imagine, CAD is saying just below 13kg right now, with small wiring bits missing. 2024 is 2.78g/cm3 and 6082 is 2.71g/cm3, so the difference is minimal.