As others have said they are asking all of the money for a car that has done lots of miles and has an LPG conversion.
Patience is your friend as something will turn up. I have been lucky enough to buy a 2005 MY facelift V70R that is a UK 3 owner car with 93,000 miles and a full Volvo history I paid a little more than your budget but hopefully it should not depreciate much
It has taken 6 months of patience for the right car to come up, I was actually looking for a T5 but couldn't resist the temptation of an R
Good luck with your search.