We use three perimeters and no infill. Supports are needed for the hilt but... if you don't mind to loose a little bit of its original shape, you can print the flat version. I have included two versions of the hilt: one with a curvy base and the other with a flat base. The flat one can be printed without supports.
The sword hilt has a hole to fit the blade there. It should fit, but as you already know, each 3d printer has their own tolerances (sand the parts if you need to).
The blade is 188mm tall, you can reduce its size or make it bigger if you printer allows it. If you scale the blade, don't forget to scale the hilt too with the same parameters.