Gee Mick, that sounds like incredible drama,lucky you didn't lose the lot!
I was idling for a few minutes when suddenly smoke or steam started spewing out of the bonnet, I pulled the bonnet release and jumped out to discover it was smoke.
I took off my shirt and braced myself for the worst and lifted the hood. There was a small fire in the back left corner which I smothered with my shirt.
I don't know how after 32 years the oil line just decided to rupture but that was the cause, the fire had just begun to melt the water bottle motor, clutch cable and a couple of water hoses.
The safest fix is to install one of these.

I've since finally bought a CAMS extinguisher, which will be installed before I ever drive the car again!!
With the speaker holes I just cut out a section from the discarded door card.
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