If you can measure up the spring you need, these people seem to have a decent range of springs that might fit your needs.
Steel and Stainless options.
No kits, though.
https://www.bolt.com.au/springs-compres ... 8_381.html
Cheers,
Rod.
bigrich wrote:A big thanks to you too BFS. Now all i gotta do is show the Bunnings staff the link on my phone. When you can catch one, they stand around in a group and when they see someone coming who looks like they need help they scatter