Hi.

70 what ?

You need to check availability before you're going to plan things like this.

70 is not a standard value for resistors (68 is though).

10 is a standard value, but you need another balance if you are using 68 instead of 70.

12 and 15 are the next values, so using 12 and 68 would get close to what you've been planning.

But you need to check it still does what you've been planning.

Next, way before building, you should do some calculations.

Ohm's law states U= I * R.

U = voltage, I = current, R = resistance.

Highest voltage you mentioned, is 24 volts.

Total resistance is 80 something.

You can now calculate what current would be drawn by your setup:

U=I*R; so I=U/R

Do the calculations, and keep an eye on what your chosen components can handle.

Power (wattage): P=U*I, you will need that too