I'm not sure where the difficulty would be? Granada could have comfortably accommodated it in my opinion, between existing buildings and land on which to build temporary structures.
I'm not sure. I was involved with the build in Lillehammer for the 1994 Winter Olympics.
NRK/EBU built a large building for the IBC. The space that CBS took for their operation was larger than anything that could have been easily accommodated at Quay Street, never mind all the other world broadcasters.
The area of the building that housed NRK's domestic pres, was more or a less a permanent facility that after the games became the regional studio for that area, (about the same level of facility as BBC English region). Everything else was stripped out, and I think the building became a college/Uni.