You might want to search for the thread robeet and I contributed to as we began working on matching vinyl (as well as working to keep it from matching if you want your rip to upload instead).
Most of it is pretty common sense and you've hit on it, but I'll add one potential factor that could make a difference. If you have a turntable that introduces any rumble, you may want to work with filters to remove it before you finalize the rip. A rumble filter in a pre-amp might help, but the one I've got hardly touches the noise problem I have. I'm using the Apple lowshelf filter in Audacity to get rid of it. I've yet to see if it improves my matching, but really, if it colors the waveform enought that I can see it, I have to think it could muck up the matching process.
I bring this up for another reason. Several times I've read postings by people who swear what they have is an excellent rip, but I get the feeling they're using their ear to come to that conclusion.
I wanted to add that as robeet said, being spot on with your speed is critical. I don't have quartz lock and in the past have used a strobe, but that assumes I've got a true, constant 60hz power supply and sorry, but I don't accept that's what they're feeding the house, so until I get a proper power supply for the TT, I've gone to pitch matching. I have several test records with tones on them, so I run those while playing the same tone from a WAV. Unfortunately while this works very well, it's also going to let you know the hard way if you've got any wow and flutter to contend with.
Message was edited by: JiminMissouri