No. Unlike a vanity, a wall-hung basin is held by two bolts. While sturdy, it is not designed to support body weight.
Yes, but you would need a custom carpenter to build a cabinet around the installed basin. It is easier to decide beforehand.
Most wall-hung basins have a single tap hole for a Pillar Cock or Basin Mixer. Some small ones require the tap to be on the side (Side-Monobloc).
No. The whole point of this design is that it hangs freely. However, you can add a “Bottle Trap” to make the plumbing look neat.