Hi & welcome to FT! I assume you are looking at a xONE4 (oneworld explorer for 4 continents)

The main problem I see with your itinerary is that many segments are not operated directly by any OW airline. You might therefore end up needing more segments than you're allowed.

In particular I identified following problems:
- no direct flights between CNS and AKL (via BNE or SYD possible) as well as between AKL and HNL (via SYD). This will require two more segments inside Southwest Pacific;
- same between LAX-PTY (via MIA), SJO-ANC (via DFW in summer only) and ANC-YYZ (via DFW). Here you need at least three more segments than planned in your itinerary and you would exceed the total of 6 flights allowed for North America (HNL-LAX-MIA-PTY//SJO-DFW-ANC-DFW-YYZ uses 8 segments counting to the total of 20 & 7 flights counting towards the continental total of 6);
- note that only TWO stopovers are allowed in your continent of origin (North America), therefore only two among HNL, PTY/SJO and ANC can be stopovers.

Hope that can help