Replacement parts are on the way; should be arriving tomorrow.
Decided to go with a dual gear extruder to make filament use more accurate, and some LED lights for inside of the enclosure so I can keep it lit while working.
I'm going to put a Raspberry Pi in with it, running OctoPrint, with a camera for monitoring and running the prints.
BLTouch sensor and dual gear extruder fitted! Also set up Debian on an old thin client to be the local access point for Octoprint, and maybe for other things too!
3D printing itself has been a little delayed as I'm going to a BBQ this weekend (with a three hour trip each way, lol) and I'm going to be dying my hair again tonight!
Got a new motherboard for the 3D printing arriving today and that'll need firmwwre compiled for it.
If all goes well then I can start printing again on Sunday!