So far, I have hammered into shape a bit of steel.

The one on the left is the original.  The other two are attempts of mine.  Notice that I am not apparently much good at selecting the right size to begin with.

Both of these I think will work, but I want to come a bit closer to the original on the right handed skew blade, which is the middle one.

I do plan to temper and put to use both of these, but I want a matching pair that I made, that are fairly similar.  Getting the indentation right on the Japanese Style plane’s bottom edge is harder than it seems.  This is a good project for me to learn from.

Bob