This is the Omega Smallsword from Final Fantasy XIV, used by the Red Mage class. Once printed you will want a number of rods to support all the pieces. I used 6mm, 8mm, and 10mm carbon fiber rods. You can find these on Amazon. There is about 0.25mm clearance built into the models already which should work for most 3D printers.
The lenses should be printed in a transparent filament.
The model is mostly accurate to the ingame model. When I started modeling this, I didn't know much about ZBrush but by the end of modeling the mainhand, I was using ZBrush for the detailing. This means the details towards the handle are all done in Fusion 360, while the details towards the point of the Sword are largely done in ZBrush. I don't think this difference in technique is too noticeable.
The detachable pieces use magnets to stay on. Stands for these are build into all of the models. A variety pack of neodynium magnets from Amazon should have all the sizes you need.
Note: I'll be expanding this section a bit, but it's late and I wanted to get this uploaded.
Some off the offhand files are non-manifold in that they do not have a top or bottom. Make sure your slicer can fill these holds in by treating them as flat surfaces (Cura, which I use, will do this).