Next task up was fixing the heater unit to the scuttle, using a diagram that Mark at Westfield sent through.
Drilled the holes and then bolted it up. The top lip of the heater body was slightly too high up the scuttle and I needed to add a 2mm strip of rubber where it was pushed out by the radius of the curve at the top of the scuttle. Last step was to fit the flexible tube to the windscreen vents, and the footwell vents.
While I'm still waiting for the loom I thought I would fit the lights into the rear tub. To locate where the holes needed to be drilled I put some masking tape on the body, and then a dab of paint on the back of the lights and then pressed them into place to make a mark. This worked well enough, but I needed to use the Dremel very gently to adjust them a bit. Even though I only needed to make a few holes this generates lots of dust, so took care to use a face mask.
The build manual appears to recommend using plenty of polymer adhesive, but I found that the self tapping screws were very secure. in the end I put a few dabs of adhesive on the main lights and reflectors. I plan to put some silicone grease / dielectric grease on the terminals when I connect it up, to keep moisture and dirt out, and maintain a better connection.
This weekend I have been drilling and trial-fitting most of the remaining aluminium panels, including the tunnel sides, rear bulkhead, and outside side panels. I used some engine oil as a substitute for cutting fluid, and then gave everything a good wipe down when I was finished. I've not sealed and riveted any of the panels into place just yet, I'll do this when I've fitted the loom which I am waiting for.
Next task will be fitting the differential, and then building out the rear wishbones and axles etc.