I am confused as to what you are exactly trying to acheive here, if you are still using DAS, how exactly do you expect Host A to see Host B's local datastore.
Unless you have some sort of shared storage, either a SAN, NAS or a VSA loaded on the hosts and a copy of vCenter, you will not be able to do vMotion, DRS, sDRS, or Storage vMotion.
Just adding a new host without adding shared storage and implementing vCenter will not allow Clusters, all you will have is two ESX hosts