Outland is your best (and only logical) option, since you plan to leave Canada for more than 2 weeks during the process.
Also worth noting that in some provinces, such as BC, a person is eligible for health care as soon as they have been `Approved in Principle', without needing a WP. It appears that Ontario may also have such requirements:
https://settlement.org/ontario/health/ohip-and-health-insurance/ontario-health-insurance-plan-ohip/who-is-eligible-for-ohip/
Part A
You must be able to answer "yes" to
each of these statements:
- Your principal home is in Ontario.
- You were not away from Ontario for more than 30 days during the first 6 months that you lived here. That means you must be in Ontario for 153 days of the first 183 days that you live in Ontario.
- You are in Ontario for at least 153 days in any 12-month period.
Part B
You must be able to answer "yes" to
at least 1 of these statements:
Canadian Citizens and Permanent Residents
- You are a Canadian citizen or permanent resident (including recently adopted children).
- You are a "protected person," also called a convention refugee.
- You are registered as an Indian under the Indian Act. (This is for aboriginal people of Canada.)
- You applied for permanent residence and Immigration, Refugees and Citizenship Canada (IRCC) confirmed that you meet the eligibility requirements to apply for permanent residence in Canada. This means that you have "approval-in-principle."
An Inland applicant technically does not need to maintain their status, but this is generally not advisable. This is because of a Public Policy that does not disqualify an Inland applicant solely because of not having legal status in Canada; Outland applicants do not benefit from that same policy.