Heya - I'd be really grateful if anyone could offer some advice here. I'm trying to book a flight from SJO (San Jose, Costa Rica) to Sydney. I'd like to stopover in Rarotonga on the way there, and Seoul on the way back. I can find the proper connections but its a bit wonky, and I don't know if it's going to work when I put it all together. Here's what it looks like:

SJO (Costa Rica) >

IAH (Houston) >

LAX >

RAR (Rarotonga) STOPOVER >

SYD >

then returning ...

SYD >

ICN (Seoul) STOPOVER >

LAX >

YYZ (Toronto!) >

SJO (Costa Rica)

All the bits have open seats for the days I want over the December/January period (according to Aeroplan online flight search), but I'm not sure how to figure out the total mileage and compare it to the allowed mileage for that trip. Any links to explanations of how that works, and links to how to figure it all out would be great. I've done some searching but have had no joy yet. I'm expecting lots of fun calling them tomorrow!! Mucho gracias!