On a 7400, with a 466DT engine, the snow valve is located on the engine side of the air intake housing; which is located on the driver's side of the engine compartment.
Depends on what the truck and dump body is rated for.
yes
there are no keys
Sure, it depends on the driver, the tires and how deep the snow is.
It is good to have a truck cover in case the truck can't stay in the garage. If it might hail or snow and the truck is in a parking lot, put the truck cover on the truck to keep it safe.
no help
you can do a 360 and stuff like that
the tow truck obviously is not working, or your car has way too much snow on it or maybe its frozen or you may have to wait for a thaw
the ford flex is absolutely brilliant in snow is better than a monster truck
The price of a snow plow truck really depends on the person purchasing it. A commercial snow plow starts out at $100,000 and the price only continues to increase depending on various options and add-ons. Either way, a 3/4 ton pick-up truck is required, in addition to buying some sort of plow for it as well as the mount to get it on the truck.
Salt spreader truck.
Well it depends on the condition of the snow but to be safe yes you should.