I have a single cab d40 just put two inch front strut spacers off ebay from america. Search nissan frontier lift on ebay $100 delivered to my door in one week well made solid alli fitted perfectly. I had rear blocks made for me and sourced longer U bolts from an older model high lux but if thats not an option the ebay store does front and rear kits for about 200-250 delivered depending where in aus you are. Theres the cheapest option you will find new springs and shocks is always better but more expensive