Leave the pedestal. The nuts are 9/16? heck, I should have that memorized, but I don't.
The hard one is the oil drain. Go to the autoparts store and get a 1/2" DISTRIBUTOR WRENCH. Undo it under the charger.
FWIW, all the hardware on my HTT was metric. The nuts holding the charger to the pedastal were 15mm.
And the distrubutor wrench would make this a bit easier, but I got by with a crows foot.