They're not like either of those. They're like these:
They're available from Bike Bandit, Motorcycle Superstore, and probably lots of other places, but
not Cycle Gear, so we don't have a local option. There's no way to know the thickness of the mount end of the stem; I know the base won't fit. What I'd like to find out is whether anyone has mounted these, and can confirm the fit and the resulting angle on the bike. Thanks!