At the very least, you don't need to do the first two steps. Backblaze can ship you your backup on a hard drive, which you can then return for a full refund.
The problem is that this is very expensive if you're not in the US. I'd have to pay for customs + return shipping, which would add up to much more than the cost of a new drive.
It's not /quite/ the same, but thankfully even after Brexit I can export broken electronics from the UK to the EU for warranty repair—without being charged a fee when the repaired item is returned to me. (The manufacturer in the EU isn't charged a fee either, when they receive the broken item.)
As for returns shipping, maybe you can shop around, but yeah, it can be expensive.