I have an interesting itinerary coming up. It looks like the following:

Aug 23:
YYZ-ORD: AC503. 08:45 to 09:34. (K)
ORD-NRT: NH11. 11:20 to 14:20 +1. (O)

Sept 2:
HND-LAX: NH106. 22:55 to 16:45. (O)
LAX-YYZ. AC788. 22:15 to 05:52. (I)

As you can see, I have one revenue segment and three award segments. The two NH segments are on the same PNR but the AC ones are both individual, so that's three different tickets.

My question is whether I'll be able to have them check through a bag so I don't need to go to the baggage claim in ORD and grab it and then re-check it on NH, and the same for LAX. I'm not concerned about the effort, but I'm concerned that there might not be enough time to do that with the ORD connection, especially if there's a delay.

If it is possible, how do I let AC know that I'm continuing onward and hopefully have them transfer the bag correctly? Also, is there any complication with respect to baggage costs? I'm assuming since it's free on every other carrier I'd just pay the $27 for the YYZ-ORD flight.