You could either:

1. Make your own from scratch

2. Adapt the one you have.  Remember, V3, A3, D3 and S3 skins will also work to a certain extent.

3. Search in Freestuff

I don't think there will be any on sale now, since M4's been out for a while.  No reason you can't make your own, though.  It's time consuming work but satisfying in the end.

If you want to make your textures as good as the bought ones, consider a subscription to 3d.sk, which has an enormous collection of photographs for use in texture making. 

Needless to say, options 1 and 2 need a graphics app such as Photoshop, PaintShop Pro or Gimp.  And, of course, a good deal of skill and patience.  

 

 

 

 

 

Coppula eam se non posit acceptera jocularum.

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