Could you clarify if you were in the US again since the COPR expired? because if you havent traveled then why would they ask for it? Also, did you get all three requests together or on different days?
As for the fingerprinting, there should be fingerprinting experts close to you. Last time I needed one, I actually searched this forum and found one less than 10 mins from my place. You can also get the fingerpriting card from amazon and do it at home, although I would recommend going to a fingerprinting expert. Once you have the fingerprint card ready, wait for it to fully try (this is very imp) and just ship it to the FBI address. You will get the PCC the day the package reaches and an email allowing you access to the online copy (which you can upload to IRCC). They will also send you a mail copy, but that takes longer. All in all, once you find an fingerprinting expert, the whole thing should take a week at the max (including courier transit time).