Lenny, your weights should be ok now. I have a Ram 3500 DRW, long bed, CC and with washer/dryer, 6 AGM batteries, 6 solar panels on the roof and 300 liters of fuel in the bed, we're still good on all weights (but very close to the 14000 GVWR of the truck).
Does your new truck have the Aisin tranny?
We had a 2008 F450 and a 2011 (late 2010 build) F550 and there is no way I get another Ford in the near future.
2013 RAM 3500 Dually Longhorn
2014 Trilogy 3650RL, W/D, Onan 5500, 8000# Axles, IS, 960 Watt Solar, 6x6 Volt Battery Bank, Freedom SW 3012 Inv/Charger