Logic is sound but I think it'd all have to be a very precise fit (both the tube in the hub and the axle in the tube) to ensure everything was working as intended
It doesn't look like SP do an adapter so I don't think I've got any other options but to track down a Halo adapter, which means the rush to get this down for this weekend was pointless. Yay for pointless hassle.
So, if the outside diam. of the tube matches the inner diam. of the hub it should still be all good, yeah?