First of all . if you have commitment which could not be done before expiry of your PR visa, then it is most important for you give your arrival/landing in canada as soon as you get your PR and update your local canada address (even relative/friend home address) with IRCC/Cic and your friend/relative address IRCC/Cic will send your PR through courier . Even your friend/relative can receive your PR card.
After one to two weeks of Landing / arrival you leave for your other countries trip and finish it as long as you want but not more then two years.
Yout option #1 is quite do able then others options
