You're probably worrying too much. I change my oil and just fire it up. It rattles for a few seconds and it's fine. I have the most tested engine oil of probably any Mirage on the planet...and my oil is fine. And on top of that...I even use 5W30.
Now...if you want to crank the engine without starting it, the easiest way to do this is to floor the accelerator and then crank it. This is called Clear Flood Mode. Here's a demo...
Just be ready to take your foot off the accelerator quickly because sometimes a car may still fire and start under these conditions. But I've never had it happen in all the times I've used this trick.
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View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)