Hi. Need help getting my simple sword properly retextured for Oblivion.

[FrederickEmpalador]

Hi. I'm just looking for help getting my sword properly retextured.

 

The UV's are set properly and the texture shows properly in Oblivion, but my textures are crap, and I'm unable to achieve the look that I want ingame.

 

I've tried using projection tools in different softwares, using the textures I made in 3DS Max, and achieved some sort of decent look ingame (still with painting errors due to the projection tool being poorly used), but it still wasn't the look I wanted, wich is a chrome-like polished metal finish, highly reflective.

 

The sword also has a red gem in the core of the hilt wich should have a little red glow, and has a couple of turquoise gems along the grip, wich I'd like to look nice, and a ruby in the pommel, wich should have a lil bit of transparency (although I'm using an ENB and I've eperienced transparency issues like the textures glitching and going crazy when in first person view, so maybe I shouldn't have transparency? I don't know anymore..)

 

So I started learning substance painter to try to achieve the look I wanted and I sort of succeeded (at least in render), but when I export the textures (Base Color, Normal, Metallic, Metallic Roughness, Emissive) I cannot make them work properly in Nifskope. I've converted them to .dds with Gimp, but I don't really know how to load them properly in Nifskope. I had help seting up the NIF file from a kind user of the Nexus called Pellape, so I really don't know how to make changes to it. I can load the base color map in Nifskope and it works, but it looks bland ingame, not shiny and glorious. I couldn't find a BSLightingShaderProperty so I tried to add that property and insert a BSShaderTextureSet to it, but I don't really know much about adding and flagging and all that, and when I add all those maps into the texture set I get the "WTF? I'm a missing mesh" thingy ingame.

I know there are dozens of tutorials and it's such a long road that's overwhelming sometimes, that I just wish someone could do that retexture and just tell me exactly step by step how they did it, so I can copy them like a monkey next time.
Seriously, I'll buy you a beer, publish the mod and be forever grateful in the front page.

 

Here's a picture of the substance render, kind of what I'm looking for: