You're gonna need a lot more money than that. The Watch Edition is made of solid gold.
This is the problem we face with all our guessing.
Until someone buys a gold one, strips it down, perhaps cuts the case up, in cross section view. None of us really know what "Solid Gold" means in Apple Speak.
We know this is a small device.
We know the top and the bottom are almost all "hole"
That leaves the top square very narrow surround for the screen, and the bottom, slightly wider surround for the circular sensor area.
The side walls, with cut outs being the most "solid" areas of the case.
Its a hollow shell of course, packed with electronics, battery etc.
Until one is cut in half, no one, right now, other than Apple knows what wall thickness it has.
That alone is going to have a MASSIVE bearing on the price of the gold ones.
We are just guessing.
It can't be too thick as there would be no room inside!
But of course if needs to be thick enough not to collapse and dent too easy.
Time will tell, and it will be interesting