What you propose is indeed possible. How difficult it is, depends on what wiring is currently in place.
You should start by connecting all the bare/green grounding conductors in the switch box together, including a pigtail to both switches. Other than that, it sounds like the wiring in the switch box is good to go.
If you want to control the fan with a wall fan control, you can install that in place of the fan toggle switch.
In the ceiling box, you'll likely find the 12/3 cable from the switch box. If the existing fixture uses a remote module, you'll likely find that either the black or red wire from the 12/3 cable is simply capped off. You'll see the black/red, white and ground wire connect to the remote module. The remote module should connect to the fixture with a black, blue, white, and bare/green wire.
If you want to remove the remote module, you should disconnect it from all the wiring. Once disconnected, you can remove the module, or cap off all the wires and leave the module in place.
To control the fan using only the wall switches.
- Connect the white wire from the ceiling to the white wire from the fixture.
- Connect the bare/green wire from the ceiling to the bare/green wire from the fixture. If the box is metal, include a pigtail to the box.
- Connect the red wire from the ceiling to the blue wire from the fixture.
- Connect the black wire from the ceiling to the black wire from the fixture.
Now the switch connected to the red wire, should turn the light on/off. The switch connected to the black wire, should turn the fan on/off (and optionally adjust the speed).
It sounds like your plan will work now that you have the 12/3 cable -- since you have a neutral at the kitchen-side switch, you don't need to worry about running one to the entry-side switch, as the 404.2(C) provisions for neutral at switches only require neutral at one location within a multiway switching setup.
Best Answer
That's possible, but I doubt that something like this would be up to any electrical code unless those are 3 way switches that have their counterparts somewhere else as they make wireless 3 way switches
Anyway, something like this seems like a bad idea. If you are remodeling anyway , then either fish the wires or open up the walls and patch them later. Nothing beats hardwired connection.