Yes thanks i have been in to see them as they are only down the road from me.
They gave me a funny look as if i was mad, the young girl in reception did not
know they made caravans in the dark ages.
That age Coromal was made before the old company was bought by Fleetwood.
They had a small family run factory in Osbourne park, Perth, and did limited production runs on their various models, I did one of their factory tours one Saturday morning, was not too impressed.
The chassis was a home brew affair with their own independent suspension and all plain steel construction then sprayed silver.The ally frame was flimsy little angle maybe 1.6mm thick and was pop riveted together.
Another little gem I remember was a welder running beads of weld along the top rails of a finished chassis, when questioned why, it was to pre- stress the chassis to limit downward flexing when fully loaded, yeh right real good engineering practice that.
The side cladding was all stuck on with plain old silicone, when I mentioned this to the tour person, that silicone was not really an adhesive but a sealer, he said they used that so they could easily remove the panels later if a repair was needed ! probably why you see so many older Coromels with side panels loose from their frames.
Anyway we bought our first van a few months later, a Jayco Freedom poptop ! another lemon, but at least it had a galvanized chassis, but we wont go there.
I will re state here, this was the old pre Fleetwood Coromels, not the newer modern models produced south of Perth WA.