No way to lower your room temps? I try to keep mine below 70 here whenever possible. If you could do that, well, that'd save you 5-15 degrees. Your seedlings certainly look healthy enough. Where is your thermometer mounted? If it's being hit by the light, I'd move it above the light (and not touching the light or reflector). The temps you get at the top of the cabinet are generally the ones I go by, as that's the temp of the air that your oscillating fan is blowing over the plants.

Very nice and clean setup, btw!