Thanks Everyone
My plan will be to try it bolted to existing slab.
I control everything remotely from inside the house so dont need to worry about vibration during imaging from the floor.
If I find it is not stable enough then I will do what you suggest Leon and cut the concrete, bore a hole , fill it with a plug of around 1metric ton. fix some threaded rod to it below the floor surface and then fix the pier to it.
This way the pier wont be waisted
Also redid my calculations tonight and Pier needs to be 1.49 high.
The Parmount MX I am waiting for is a fair bit taller than my MI250