Bad idea if you ask me.
You think its a pos now, just wait till that weild breaks when you need it most.
Full tang knives work best because their all one piece of metal.
My advice would be (i think the screw part and blade are one piece) to heat up the bolt and flatten it to a tang, be it full or short tang, if that doesnt work, still flaten the bolt, and add melted steel to the flattened bolt and shape it to a handle.
Or,, lmao, just do like i do and have it as a shit blade that you dont mind f-en up, and go buy a good bowie for the other shit.
Imho, it does have a good weight to it, and because of that i find its a good practice throwing knife.