I need help with my Honda Jazz....

Its a 2001 GD1 and it currently has 40mm lowering springs.
This isn't low enough for me so im looking to go lower however the only way now im told is to get coilovers for it. Jazz Specific ones are like £600+ so im wondering if you guys knew any other coilies that would fit my model ? IE any honda civic ones that would fit? Thank you!

My Car...