Instructions-

First, get the latest version of ModEngine2. See the link below.

https://github.com/soulsmods/ModEngine2/releases

Next, download this mod.

After the ZIP is downloaded, extract it with your chosen method.

There will be a file in the extracted folder called "mod". This contains the "parts" folder which contains the actual models in the .dcx format required for ModEngine.  
Each of the named files in that folder will overwrite their respective model in game. To add the modded weapon/armor to your game, just drag the "mod" folder you 
downloaded into your Modengine2  folder and merge the folders. To remove the modded weapon/armor, just delete the .dcx file for the respective part. 
I put a list below of the file names included and which weapon/armor piece they belong to for your reference. (thanks for the id's for the other swords crabcrunch)


1 - Havel's Set 
am_m_7500.partsbnd.dcx
bd_m_7500.partsbnd.dcx
hd_m_7500.partsbnd.dcx
lg_m_7500.partsbnd.dcx
2 - Greatsword
wp_a_0605.partsbnd.dcx
3- Gael's
wp_a_0226.partsbnd.dcx
4 - Wolf Knight's
wp_a_0630.partsbnd.dcx
5 - Farron
wp_a_0620.partsbnd.dcx

ps- I'm aware of the odd digicam looking reflection, it has to do with the seperate texture files used for effects. I'm not too familiar with this but I'm gonna take a look and find a fix. If it bugs you just wait a bit for me to update.