OK, take my comment with a grain of salt since I don't have the ENO crankset but,...
Since the ENO crankset relies on a center-lockring, that means you will have to remove the crank from the BB to change the ring.
Cheaper, faster, to chang the rear cog. I have a Chris King SS hubset, and there is space on the cog carrier for 3 cogs. If you are lazy, you could leave all 3 cogs on the cassette, and just move the chain/tensioner over.
IMHO, changing the chainring is always more work than changing a cog.
Is there a reason you don't want to change the cog?