I have been thinking with the advent of EMALS, you could setup an unsinkable carrier. I worked at a minesite in australia. I used to always think how easy it would be hide a "carrier" there.
It has large areas of tarmac, probably would need reinforcement for aircraft, you could use emal for launching and recovering aircraft, the large power requirement wouldn't be an issue because minesites already have high voltage power lines. Theres major shed that could store dozens of aircraft, large fuel tanks that store diesel cant imagine it would be much effort to convert them to a aviation fuel. They have storage for explosive which you can keep the bombs/munitions. Heaps of accomadation for the 'crew'
The emals would have to be fixed in the ground, they would be detectable by sat recon if you were looking for them, but they would be easy to hide. Just put a donga over them and when you need to use the emal just fork lift them off