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Looks ok. Though I am still a bit worried about HT.
If the cooling is a bit a-symmetrical, that heel could bend to one side ot the other, and you'd have to do quite some grinding to get it to look...

You may have comparable steels though. For example, nobody knows the name 'O1' in Belgium, but there is an identical steel called DIN2510 or something like that. We use German identifications...

Um... Anyone can do that.
Seriously.

You may have a couple of false starts, and making a new blade is probably not the best idea for a first project. It may be a better idea to restore a couple...

I am a bit worried about the cut-out. I wonder what it will do during HT.
And the curly tail is a bit short. Depending on how you hold the razor and how thick your fingers are, it might be a tad...