Large 3D printer?

[DaveB]

FT5 R2:
(yes) Box-like frame so that I can enclose the machine if it's not already enclosed.
(yes) Heated build platform that goes up and down instead of back and forth.
(yes Rev 2) 24-volt electrical system.
(no) All-metal hothead.
(yes) Direct-feed extruder instead of Bowden-feed.
(no, it is 300x300x400) Build volume of 400mm x 400mm x 400mm or larger.
(yes 245C Max hot end temp) Can use all kinds of filaments.
Note: It is a kit!