239,000kms for a 96 car is high, but if it's in great condition like u say, then the kms don't really matter. Try to find out about its history too; what it was used for.
I'd rather buy a squeaky clean & reco'd ex-taxi than a filthy beat up equivalent model with low kms.
Try to find some XH members in the E-Series section, coz they might be able to help you with identifying common problems, etc.
'91 EB Fairmont Ghia V8.
Pacemaker PH4000 extractors
Meaty semi-twin system
AUII XR8 t/b & maf, ELGT snorkel
BA semi-manual shifter conversion
Electronic shift kit
4.11 Hydratrak LSD
Explorer intake manifold
Contra 16x9 rims, rubber: 225(f)/245(r)
Chiptorque HP2 chip
ET: 14.78 @ 91.48mph, 137rwkw!