Buying a 99 4.5L petrol, any good

[4by]

Here's some more info on valve saver system: http://www.flashlube.com/eu/products...saver-kit.html

All LPG tanks have a 10 year period then it will need to be retested. (I paid $300 for tank testing depending where you go) Second hand tank will still work if tested ok and still within date. Check to make sure it doesn't run out soon. How much are you saving with second hand tank?
$2,800 sounds pretty good. Did they say it was a vapour system? Make sure parts are readily available should you need them one day down the track.