The deal on both the commie rafts was pretty restrictive. Neither ship was equipped with any commo gear, armament of any type or even the propulsion systems. Picked clean steel hulks.
Which is why the chinese pretty much scrapped any idea of reworking the boats and decided to go with their own renditions from scratch.
Again, the value of a carrier force to the chinese is in 'brown water' force projection (contested spratley islands, phillipines, vietnam, formosa) and defense of home waters against intruding yankee-dog pirate subs. HAAAR!
In a wierd way, the emergence of a pacific naval power is good.. we'll likely be continuing with our own super carrier build and development program, this assures the continued presence and importance of our own navy's force projection program.