Originally Posted by
polarstar
Yes, this could be an option. Starting out with a 6800 chainset and deraillers, but having a 10s hub, cassette and chain.
My initial concern was that this setup could wear quicker, running a 10s chain on 11s chainrings.
In fact, I was suggesting using an 11-speed cassette and 11-speed chain with a 10-speed hub. I've read a couple of reports that this works fine after removing one cog from the cassette to make it the correct width for the shorter hub body (probably the 16-tooth is the least needed cog, but it depends on the cassette). The spacing would then be perfectly compatible with the 11-speed derailleur and shifter.
I agree on what others have said about DT hubs - you should be able to get a 135mm, disc, 10-speed hub from them and switch the body for the 11-speed version. But again, this is not a cheap option.