96 model 2.4s had weak head gaskets from the factory (asbestos, I believe). Unless it has EXTREMELY little use, it's probably blown and been replaced with an updated MLS gasket already. Once it has an MLS gasket, the only thing to look out for is the inevitable oil leak from the rear of the head gasket. Harmless, if you keep it topped up. They tended to burn valves at high mileage (150,000ish) if run hard. Thermostat gaskets can begin to leak at this age too.
Check condition of the trans fluid. 96 models would have been filled with ATF +2 or +3, which is pretty spent after 30,000 miles, definitely by 50k. If it's been serviced and looks good, great. If not, move along or read up on trans repair.
JX bodies liked to rust the sills out; give them a look. Check brake lines too, they're at the age where rust rears its ugly head.
Other than that, happy hunting.