I made myself wooden stands filled with sand (yup, they are heavy and solid).
Between the 802's and the stands i have rubber, also between the floor and stand i have rubber.
I made 'm out of industrial wooden plating (the 244 x 122 plates they use in construction work), i also have that on the floor so it matches the floor and it looks like they are floating now.
I have tried with the tweeter at ear height but it thought it was just a bit better with mid and tweeter center at ear heigth (so tweeter just above era and mid just below ear), don't now how high the stands are tough. But i do think itt'ss bit of trial and error.