Air Bag spring assist for Rodeo

There's a mob called Aussie Air Bags that could probably supply them.

They make them for most leaf sprung dual cabs.

Personaly I would spend my money on upgrading the springs as opposed to air bags.Just my opinion but a good set of leaf springs should do every thing air bags would with out stressing the vehicle unnecessarily
Norm

Hello again.
I should have explained better. No 1 it is a 4wd Rodeo 2001. No 2 I wish to purchase from Trucksprings.com in the States who provided me very good service with airbags for my Landcruiser 80.
The listed price in the US is less than half of the Australian price and this is with taking into account the exchange rate and postage.
THE PROBLEM is identifying the correct model Chev [S10??] that is the equivalent of the Holden Rodeo which is really a Isuzu. The Isuzu name was dropped in the States around 1999 and Chev name was used. BUT what model is the equivalent of the Holden. Dont want to order the incorrect kit. The Australian part numbers do not correspond with the US Firestone Ride Rite Kit part nos.
Any clues would be appreciated as this vehicle is heading to the Top End in a month towing an 18ft Van.
regards
Guy