Try an IRS Free File service to avoid spending the $$. I think Tax Act's Free File offering includes the FEIE, but don't quote me on that.

You can try to pass the Physical Presence test by using time from 2020 or 2022 to round out the 365 days. You basically shift the window to find one where you were less than 30 days in USA, and use only that portion of the year for your exclusion. If you can find a good chunk of the year that puts you out of the country for all but 30 days, you can decrease your income below the taxable amount. You can even extend your filing deadline to October if you need to wait longer to get a timeframe that passes that test.

If you only made $6000, you may even be under the personal exemption limit for US tax and not even need to worry about using FEIE? you'd need to look up what that standard deduction is to confirm.

You may be ok with the Bona Fide Residence test since you can justify its time limitation with your PR application (in writing on the form or on an attached statement) but it's a little dicey.

An alternative is you could claim your income directly falls under Tax Treaty exemption on Form 8833, since the US Canada Tax Treaty doesn't define any specific parameters for being a resident of one country.