MHWTexConvertor VS MonsterHunterWorldModding

Find a tool that can convert the textures to DDS files, I prefer this one.

List of numbers for armor paths

As for exporting, I think you needed 2-3 tools which I can't recall. Also the audio modding page doesn't work anymore for me. So you best bet would probably be the modding discord

Try going on here for an in-depth guide to rip the models off of the game itself with Blender

Shit, my bad! However, there is still a MHW Modding Wiki as well! The main tools are MHWNoChunk, which extracts the chunk files, then there's just a blender plugin to load the models / materials / textures. Only catch is it's for Blender 2.79, which is one of the older versions so you can simply load them in there and then copy and paste them to a newer vers.

if it's a simple replacer you could also just rename the mods weapon file to the same name as the one you want to replace (take ID from here: https://github.com/Ezekial711/MonsterHunterWorldModding/wiki/Weapon-IDs )

this is the list of the names of each armor from which you take the "pl" whatever ID next to "damascus" 2nd entry (first is alpha 2nd is beta, + is alpha/beta MR version) and replace the same part in the mods file name for each file

Weapon ID list

list of armor IDs

Seen this?

Everything you need to know is here, and follow the Model Tutorials on the sidebar.