Im planning on making something like this:

Though, i would like the finish to be smoother, and i would some of the oblong-ness off of the bottom end, but thats not the point of this post.

I dont know what scale to use, or even what scale means really, so if someone could explain that a bit to me, it would help alot.

I also dont know what to do with the neck, bolt on? Set? Neck thru? Which would be the easiest?

I would buy a pre-made neck, but I would like to have custom inlays, and the headstock would be hard to replicate unless i get a custom one made.

Thanks for opinions.