Wiring help

[Bigboytoys]

Ok guys...need some input/help
Tomorrow rewiring my emergency light setup to use a progressive light setup instead of flipping tons of switches....
So I have a 3 position slide switch which I want wired like this:
Pos. 1:Cargo strobes/Reverse light Strobes
Pos. 2os 1 and tail light strobes/rear window blinkies
Pos. 3os 1 and Pos 2 and front corner strobes/Front windshield blinky

To save myself tons of wire/time, it was suggested to me to have a negative switched system, I would just have to run 1 power wire to power everything.
Here is what I have come up with as far as a wiring diagram, using what I learned on diodes and relays. Will this work? Suggestions?

 

[HolyRamBatman]

I may get this totally wrong but lemme give it a try.

If you do a negative switched system you will have to run a negative(switched) wire and a power wire to every circuit and light on that circuit.

If you do a positive switched system you will have to run a positive(switched) wire to every circuit and light on that circuit and ground every light as close as possible or at the mounting location.

If this is correct the positive system would seem to be cleaner and easier to run and maintain.

 

[MegaCab1Ton]

I used to do automotive wiring for a living back in my younger days and I'm with HolyRamBatman on going with a positive switched system.

 

[Texasez]

If you do a positive switch system you could use a remote control switch. Then if someone walks up to your ride you could hit the key fob. Plus it'd give you the ability to control up to four lights individually.

 

[Bigboytoys]

I ended up doing the positive switched system. Turned out perfect.
The switch...

The result (position 2 on the switch)
http://www.youtube.com/watch?v=SC8-1nRoQ-M

 

[HolyRamBatman]

That's cool. Looks good!

 

[Texasez]

Good work