Major Problem: 135mm rear spacing road touring frame with shimano 5800 11 speed cassette?
This is an under-publicized and very frustrating problem. It works this way because mountain 11-speed cassettes have their largest cog attached to the rest of the cassette in such a way that it's suspended over the hub flange/spokes and not taking up any room on the freehub body. 

I have no idea whether any of the Shimano freehub bodies for any of their standard axle 11-speed road hubs hubs might be retrofittable to FH-M475. It's not impossible, because many of their hubs and freehubs are cross-compatible in a pinch. If it does work, the resulting hub will be some larger spacing than 135mm and will also have funny axle protrusion because of it. Also new Shimano freehubs for their nicer hubs can be kind of expensive. So it might be possible but it sounds like kind of a goose chase to me.

One Shimano hub that does what you want here is FH-CX75. Centerlock only. Last time I went looking for what you need, this was the cheapest reasonable quality option, but that may have changed. All sorts of cross bikes are coming at the moment with Novatec/Formula/etc hubs of this spec. Hope and White also have good upscale options.