Maybe it is just me, but I do not reuse spokes, especially with crashed wheels. Some of the spokes are bent, and fatigue life isn't something you want to figure out on an emperical basis.

If you do reuse the hubs, make sure to lace them in the same pattern ( 3x, 2x, radial) or you are asking for your hub flanges to crack.

But considering the rim plus spokes, nipples and labor, you are looking at somewhee between 50-100 dollars, depending on quality.

You might just want to buy a new wheel and have a extra hub.