Extruder for heated chamber

[Bikeracer2020]

MicroSwiss do a range of Metal extruders.
https://store.micro-swiss.com/collections/extruders

Bear in mind the hot end will probably require a cooling fan and also perhaps a part cooling fan, both of which are usually plastic in a plastic housing

[HFM]

Thank you, I will check them out. For the hotend, I'm opting for the Dragon water hotend WHF, it's watercooled, so no problem there. Not quite cheap, but the whole project will be expensive anyway...
The part cooling fan is something I haven't quite figured out yet. There are some fans that are resistant to these temperatures on Digikey though.