Fixing .obj, .fbx or .dae model to include materials and textures

I need help in understanding how to properly import .obj (composed of multiple meshes) and apply materials and textures in Unity. It can progress to a paid job. I need to have a properly designed realistic humanoid 3D model, rigged with an idle animation and T-Pose that can be imported into Unity and to be bind to HTC vive trackers for full body motion tracking and to record Mocap into .bvh or .fbx formats.
A few Model formats are also desire like: .fbx, .dae (Collada), .3ds, .dxf, .obj, .vrm,

Here is what I want to start from:

Hello There,

I can help you certainly for that Kindly Check PM


If I have a bunch of dds files, do you think I should use a dds to png convertor like and because default material is Shader - Standard which is read only
so create a new material and assign them to game objects from my model and assign Albedo adn Occlusion and whatever to get the same look and feel as
Is this the right approach. And as you said only when .dds are converted to .png I can attempt to programmatically assign values by file name.

Thanks Lisa. “Check PM” what does that mean? I didn’t receive any messages.
PM usually mean Private Message. If yes where is it?
Also you can see my more recent post where I consolidated my idea. This existing post is just a temporary problem I tried to solve