Next issue i had is now resolved....
I managed to get some Crabtree spring hangers off an awesome fellow member but they use 3 bolts to mount rather than 2 like the stock ones. There is no 3rd hold so getting a drill bit through a chassis rail with a hand drill while the car is on axle stands is quite a challenge.
Here is the solution that my friend Mr Ebay
15 tonne clamping force AND it just happened to come with the right sized bit in the box, nice score for $100