busted line

There is a guy here in my town who calls me today. He said he has a busted line and can't get any air pressure in his tanks. His Nissan is body dropped and layin hard. Anyone have any tips on how to get a jack under this thing. Everything is under the bed and the smallest jack we have won't even come close to going under. I think we may have to cut the air lines to the bags and see if we can air the front up somehow.