Old Radio Hallam Hartshead building

Does anyone on here remember or have a layout plan of the original interior of the building in Hartshead formerly occupied by Radio Hallam? I am arranging to visit the building and would be interested in a layout plan of the old station, which I believe occupied two levels.

Anyone with pix or interior of the building info please post here. I understand from the Star who own the building that the layout has been altered since Radio Hallam left, but I am hoping to be able to make sense of the current interior in relation to a plan of the original layout. The Star offices do not have a plan of the former layout.

I visited the station a few times in the late 1970's on tours but I do not have any plan or photographs, but can remember reception was on the ground level and there was a lift up to the floors with the studios and offices.