Even though most of the secound floor will not be used much for the demo I felt it necessary to build the secound floor. It is seen from some position within my level demo from the ground floor; so rather than seeing a black hole so to speak I built it all. Not sure how much will actually use as yet so will leave it as it is for now and concentrate on the ground floor.
I placed the static meshes for the main stairs banister again so the player would not fall off.
I placed the static meshes for the banisters around the ballroom again so the player would not fall off.
I placed the static meshes for the banister rail in place for the back stairs so the player could not fall down here but as so it looks correct from the ground floor looking up.
I have now complete task one of building the secound floor in UDK from floor plan.