Shackle lift could be accomplished with parts from Oz, UK, or Philippines.

Something like this: L200 Shackle Kit

Or, you could use later leaf springs from the Pajero Sport / Challenger Sport / Montero Sport models (however named near you) and have about 25mm lift and better ride than the OE and older leaf springs.

1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya