Yes, do all of that.
Also run it through a switch error check to find out if there are any existing errors, warning: if the settings, scores & etc are reset that wont help because its only going to state the item(s) that were not initiated after x number of games.
BUT!
You can put it into active switch mode & push every little thing to make sure all is well, even if it isn't though the problem is just a loose solder usually.
ALSO, look for browning on the clips.......its not a deal breaker because that always happens over time (fricking GI clips always seem to burn over time no matter what), it just means you better replace em before your board gets ruined (that's priceless advice).
When you get it home adjust the pop bumpers, replace the nylon sleeves & increase the pulse to "hard"...........that will get you by until a full rebuild.
Have fun & "GET IN THE RING - OH YEEEEEEEEEAAAAAAHHHHHH!!!!!!!!"
Also, it will break in a week like all new acquisitions do
