I have put together a simple package of seamless tiles. The tiles are 512 Tris each and have a 512x512 Bumped Diffuse material. There are instructions in the readme. Basically start at 0.0 and place each tile exactly a multiple of 9.84 apart from each other and they should line up perfectly. Feedback encouraged!
There are a couple of minor issues that are pretty easy to work around. First, from a distance and at certain angles the seams show up ever so slightly on some tiles. It is barely visible and I’m hoping someone has some suggestion for fixing this. Otherwise, just ignore it. It is practically invisible when I put stuff in the scene nearby (such as trees and buildings).
Second, the tiles cannot be rotated so I have included a texture for each direction of the path. If you rotate them the seam is completely visible. Just use the texture facing the direction you want.