Given your previous concession towards shipping as well as the fact that no blame can be placed, I'd find that a very courteous, agreeable and generous offer for which I thank you.

If this razor can be fixed somehow I'd prefer that, since it would by far be the cheapest solution. It's certain that a part can't be taken off? I just measured the 'tear' and at its highest point it's ~2mm(0.0788 inch).

I don't know if you can see it clearly on the photo but the tear goes upwards to that point and therefrom goes downwards again, so it could be seperated from the razor and then be made 2 mm smaller over the whole line?