I doubt whether there will be a kit for it, so you are going to have to find out exactly what type of suspension you have and then look around to see what universal parts are available that can be adapted to fit your car. Once you have sorted out the actual air springs and mountings, the rest will be quite easy.
For example, if you have MacPherson strut front suspension and coil spring rear suspension, you are going to have to find out about air struts for the front, and the typical standard air spring for the rear. The principle will be the same for other cars with similar suspension, so the information is definitely out there for you somewhere!
Depending on how fast you want your system to operate and what moves you want to be able to perform, you will need between 4 and 8 solenoid valves (maybe 3/8" or 1/2"). You will also need a compressor, an air tank, pressure gauges and all the air line and fittings, plus some wiring and switches.