Modifying the (Heavy)-Raider right arm (removing) or (flatting) the blades for the tempered&buttressed

[Spurklicon]

So, I'm finally looking to start modding, I have Blender/Nifskope/creation kit

 

NOW, are those 3 components fine? to start the process I want for removing the blades on the right arm?

 

IF so, anyone willing to give me tips on where to start from.. I understand the basic (locate file)-(move file)

 

but...the patterns to go about kind of confuses me.. I'm a rookie.. I've only done character pathing/map/animation triggers/cell/door snapping....(Fallout-NV)...I haven't done armor editing...so I thought I ask the community... *appears from the shadows* :D