What are you referring to? The games models are not .obj, or any standard 3d model format. To retexture things you will be working with .qb’s. The .obj’s are just used for animation purposes… but for SV at least that will only be until it supports creating animations right in the editor 
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and yes, SV will load the .qb’s just fine…
I’ve seen others upload reworks of different items… you should be fine.
Best of luck 
Glad to see another modder