I'm not entirely sure what changes there are in 2004's. You have two basic problems with relocating the HVAC overhead:
1. You need some fairly heavy wiring for the fan controls, and quite a few wires will have to be extended up the A-pillar, considering all the wires that go to the panel.
2. You will have to extend the vacuum lines, but you could do that easily enough. But again, it will be quite a bundle to run up the a-pillar and over the headliner.
Ford has done two different styles of temperature control, even on "manual" HVAC controls like yours. One uses a mechanical cable-type linkage, and the other is electrical. The cable one is probably more trouble than it's worth.
If you make some kind of custom console for under the dash as some have done, you'd have all kinds of options I would think.