Found a 1986 Porsche 911. I've been doing my research, but curious if there is anything I should be aware of? This was a local porsche shop owner's car for the last 8 months and has had a leak down test, upgraded a/c compressor, etc. Seems pretty solid at 148,000 miles. Any info would be great. Also they are asking $22k which I think will come down a little. I know documentation is key on these old cars. Thanks