How much should I expect to pay?

Looking at A fAIRMONT GHIA EL 1998 with the 4.9litre the one I'm looking at later this week the guy wants $14,300 having done 110,000kms one owner garaged mint condition - or say they say, if this is the case is $14,300 a resnoable price to pay for it?
What price range for something like this should I expect to pay?

Thanks