Don't know if these are of any interest,
http://www.leboncoin.fr/equipement_auto/215701066.htm?ca=13_s
http://www.leboncoin.fr/equipement_auto/215701066.htm?ca=13_s
According to Haynes SUS311 is the tool uses on front torsion bars from 1978 onwards. If you look at page 321 of the Haynes manual it will show the tool and another one used that can be made up.
I'm not sure about the smaller size tool but if they are cheap enough, somebody needs to buy them!!
Reidar the LBC tool is not the original (it says somewhere laser cut).
Geoff, is the anchor lever on pre-69 cars octagon shaped, too? Can you measure the AF distance, to check if the tool will also fit these cars?