It looks like the MaXXmill 350 will meet your work size requirement. Power required is 16.5KW, so I would guess 400V AC 3 phase.
https://www.emco-world.com/fileadmin/user_upload/_Group/Brochures_PDFs/PDFs_Fr%C3%A4sen/Maxxmill_350/MAXXMILL_350_EN.pdf
They are not very forthcoming on the technical data for the Concept 260.
Best to check with your local distributor for specifications and pricing.
To put the pricing in perspective, my EMCO Concept 55, 4 axis machine sold new for about $32K about 8 years ago. The original invoice came with the machine documentation when I acquired it. The Concept 55 is a toy compared to the MAXXmill 350.