Restoration of Rusty Wakizashi - I Thought it was Katana

Hello folks! Today I wanted to show you the restoration of the katana, and it turned out to be wakizashi. I received the item as a gift and I want to restore it. Well, let’s start the restore. I want to say right away — this is the first time I held a cold Japanese weapon. Therefore, I ask you to take this into account. I have no experience with it. The first duty, I took apart the scabbard and hilt. The blade was placed in a jar with a rust remover. All the details on the sheath and handle of the wakizashi turned out to be strange, apparently someone just did according to his imagination as he liked. After cleaning the blade, I realized that it was not tempered and carried out heat treatment. Next, I noticed the sword guard on a new sawn out of brass, but the first option did not work out for me and I made another one, also made of thick brass. I securely assembled the handle of the blade and fastened it with additional bushings. The handle itself has a non-standard shank, that&#