The first guitar I made plays, so anyone's first guitar should play
He's only 14 and I would have at least lost a finger doing that at 14.
And if this one doesn't play... his second one surely will.
There are some Jackson and Charvel guitars similar to yours.
There should be a regular nut near the fretboard. I can't understand why they did it that way...
What do you mean?
Well, the only difference I can think is that a fretless bass needs no fretwork...
If you are asking if it's easyer to build a bass rather than a guitar, from my very little experience there's no big difference.