people get real worried about the nikasil/alusil issue, but with good maintenence they run. there are a few people here with 200k on the nikasil blocks. get the VIN number and a carfax can be done... $7,000 is good, a lot of the 1995's with more miles than that go for 9-10k. get a good pre purchase inspection, compression/leakdown, etc.
OR, shameless plug, though its an auto... you could buy Shakman's 540ia, $5900, all service records.