Originally Posted by
jbfield
... The only reason I'm adding the stop in Osaka is because I've got an international flight from KIX at 10:50 in the morning and travelling from Kyoto to KIX might otherwise mean too early a start. Happy to spend two nights in Kyoto instead of one if I can get around that though...
Then skip Osaka and stay in Kyoto 2 nights. The airport express train - the JR Haruka - takes 65 minutes from ShinOsaka Station to KIX. The exact same train leaves from Kyoto Station en route to KIX via ShinOsaka 13 minutes earlier. For that extra 13 minutes, you can avoid moving hotel one extra time and enjoy Kyoto for an extra night.
There really won't be much, if any, advantage to trying to get all your train travel on one ticket. As previously stated, your trip from NGO into Nagoya will be on the Meitetsu Limited Express. Going from Nagoya to Kyoto will be on the JR shinkansen ("bullet train") and the trip from Kyoto to KIX will be on the Haruka. All seperate lines and seperate tickets. You might save some money on the KIX leg by purchasing a JR Kansai area pass but consolidating tickets isn't going to help much.
There is a 7:15am Haruka from Kyoto that will get you to KIX at 8:54am, which should be plenty of time for a 10:50am flight. If you feel adventurous, the 7:50am Haruka arrives at KIX at 9:23am. That might be cutting it a bit close but could be doable in a pinch, particularly if you are not checking luggage.