I have read mixed things about when the first oil change should be. Many say between 500-1000. I am looking at buying a T/A tomorrow but the 2nd owner doesn't know 100% when the first oil change was. The car fax shows an oil change done at 3000 miles and another at 5000 miles. Is this something to worry about? Car only has r29 recall, not r28. The original owner may have changed it himself but no records to prove. The car has 6000 miles on it currently.

Also, any other things I should look for other than the obvious stuff (tires, brakes, etc).

Thanks in advance for the help.