pistol840,
Your model Simca would be almost non-existant in Australia. I believe they sold them in NZ. You should get a reply from there.
I'm flying blind here with my suggestions. If your model has the "bladder" type reservoir you may be able to source one from a Fiat.
If it is the bottle type with a built in pump you could by-pass this and fit an after market pump. Halfords possibly? Although I'm told they sell bikes and wheelbarrows now! :crazy: