Thats a great buy Shawn for sure, and I'd agree given the pictures they look authentic to me also, you can just see a little bit of the selvedge and there is some green in it. had it just been red then I would have suspected it was one of the many good japanese red line selvedge fakes you often see on yahoo Japan auctions. All the other details such as the waistpatch, denim, stitching lines looks spot on also.
And the icing on the cake is that this is a true classic RMC design and should be in the collection of any collector. Well done!