It depends on your riding style, but for a Loaded board, I'd suggest something like Paris brand longboard trucks or Randal brand longboard trucks.
My personal favorite longboard trucks are Paris trucks.
Longboard trucks can be bought from any stockist of skateboarding equipment or from online retailers such as Amazon. They cost around forty dollars for a pair.
No they are bad! for good boards go on a good longboard site or they will tell you the info on good boards for downhill, sliding and free ride.
Whatever you want them to be
yeah, you can get them from Tensor
VOLADOR 42inch Freeride Longboard. Playshion Drop Through Longboard Cruiser. Magneto Bamboo Longboards. JUCKER HAWAII Original Longboard. Slendor Longboard 42 inch Drop Through. Landyachtz Switch Longboard Complete and Colors.
You should always have the same size trucks
loose trucks and a wide board
Buy wheels, trucks, and a deck and screw them together
yeah, you'll need risers
kingpins usually face outward on longboards