6-9" = r 21- r 34, minimal and well below the optimum for your area,
add another R 35 in batt or fiberglass blown in. Cellulose is junk and
serttles and deteriorates. Also calculate in 15% settling of new
insulation so add an extra 15% over R 35. Price out what is cheaper,
batt or blown in. Don`t worry about wires.