The problem with that is that the wall base is not at the same level as story one. The wall is a composite (2x6 framing, 1/2" plywood sheathing, 1" airspace, and 3 5/8" brick). It extends past story one to a brick ledge on the foundation wall. I then used SEOs to allow the sub floor of story 1 to intersect the the 2x6 framing. This is shown in the image below.
Also, even when I change to Header to Wall Base or any other option for that matter, it still gives me 8'-1" (in this case, different numbers with different window models/sizes as described in the OP) as the object height which is significantly larger than the window itself.