ok so same concept of editing textures, except rez files. Ill put my progress below and edit each time, once i fully completed not only switching models, but the ability to edit models in a program, then I will post a tutorial.
Extract Models from .Rez [

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Turn LTA Files to LTB [

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Turn LTB File to LTA [

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Get a LTA Plugin for Blender [

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Create a LTB File [

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Pack files [

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Fully tested in game [

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