welcome to the rv world,you can use a repair manual from Chilton for the ford part of it,as for the rv part this group of folks on this forum are a wealth of information.
i bought valve extenders for my duals to be able to check the air works well and either tire monitors or lower budget thread on indicators on the valve stems are a big help.
as your rig is very similar to mine i can share some on pulling hills, let it go up the hill as it want's to, you will lose speed no matter what you do kick the throttle down gently, you will find where it is happy and will pull without excessive rpm on most grades,there will be times you will have it on the floor and be crawling that is part of moving a house on wheels down the road.it is a process that is learned over time and miles,braking is similar to a big rig start braking early and allow lots of time and room.
air pressure in your tires aren't like a big truck though if you max out tire pressures it will handle badly i run 65psi in my rears and 60 psi in my front max is 80, you will need to adjust yours according to your weight and tires
good luck and safe travels