Dusted off the old reprap today.
I warmed the heater up and extruded a few cm of 1mm extrusion - through a 0.8mm nozzle, the print quality won't be too good but it should be quick. The extruder actually seems to work reasonably well!
I then had to fix the acrylic Z-axis flag, which has cracked and broken off - the flag holder and also the opto-endstop holder. A big lump of polymorph worked really well at replacing both cracked acrylic parts.
I then had a massive headache so I put it down for the afternoon.
Nearly there - time to try a print soon.