On most listings where the home is in a Tract neighborhood, yes there are different types of models, the trick is getting the seller to remember which model they bought or for the listing agent to do some extra investigation to find out which model they've got listed, whether it's asking other neighbors or what.
That field that you're seeing on listings, where the agent puts in Model "O", it just means "other" or more precisely 'they don't know'. Especially on an REO property, I would find it highly unlikely that the listing agent would even try to investigate which model it is, much less actually take measurements of each room. (the MLS doesn't require room measurements, so most agents for REOs or normal sales, don't do it)
If you are really interested in this neighborhood & aren't currently working with another agent, I'd be happy to investigate further. The home on Hawk is still coming up as an Active REO listing too.
Oh, also on Alevera, there's a short sale that has offers submitted on it, however there are 2 other units that could be available, different floorplans, one is on Hold & the other, the owner is in default on their loan.