Hm. I would say good try buuuuut if that is a classic dutch/flemish scythe blade (looking at th vid it's) you might be in trouble. The tang angel on those is huge (30° sometimes even more) that is the reason why the store bought steel snaths(handels) have the short grip near the blade and the long near the but it changes the overal "workangel" of the snath so the tip of the blade doesn't dig in to the ground when in use. Best thing to do is to hold your scythe like you would use it and see if it rests on the belly with the up.
If so, your in the money! If not... i am afraid your snath is not gone work at all.
I live in Flanders and restored several steel snaths+blades and made the same misstake with the first.
PS: What is the makers mark and text on the blade? can't tell on the vid.
You learn from your mistakes, that's how simple it's. Stil you can find old steel snaths for cheap. Paid 3 Euros for snath + blade on a flea market some months ago in good enough shape (read as not perfect but good enough after some toutchups)