Thanks to all.
Neil at Suttens tried to help but couldnt.
My thanks to Mark for phoning at offering help and some bits.
Thanks for the PM Wally, I am at the G'day Mate c/van park and Andrew is right next door. I actualy met him 13yrs ago in Darwin and knew he was around here somwhere, but didnt know his name.
He was able to pull out some 130 main springs to sell to me. I feel much better now.
The problem I had was not so much with the air bags but with the military chassie. It was fine without being loaded up, but as the instructions say they do expand with shocks.
No problem normaly but the mod to the army rear end starts at the rear outrigger and comes close to the airbag. After the Heather & gunbarrel and half way up the Canning I noticed a wear mark in the bag and put a bit of plastic over it to stop the wear.
Big mistake. It worked like a bit of sandpaper and wore a hole.
Very happy with the performance and comfort of the bags and would put them on again..... but not on this chassie unless I can mod it to give more clearance.

