Everything is nice and clean now, including the rain tray / scuttle area, and Botang's Hole sorted.
Unfortunately I discovered the wiper mechanism is worn out - the usual rusty ball joint, and one of the spindles rattling about so that'll need replacing as well.
I didn't take a pic, but the rack and pipework are back in now, and the flywheel bolts finally came from Germany so after the Malaysia F1 qualifying I'll be re-attaching the engine and gearbox and putting all the final bits back on them ready to go back in tomorrow.