I saw a mk4 lpg'd on ebay last night, £800 to buy outright, or offers.
Don't take this as a recommendation though, I only had a quick look, as I was looking for something else.
I do recall it had 200,000 miles on it though.
Edit:- Here you go, make your own mind up.
http://www.ebay.co.uk/itm/121560345872?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Sold quickly at £800 B.I.N.
this is being sold by the popular lexus seller for £1350