Spending Millions designing Cats.....dear boy they already exist in many forms.
Build them under license.....there....problem sorted. Same for the arresting gear.
Then you could operate F-35's, F-18's, COD's, Carrier AWACS Aircraft, UAV's.....aircraff from many NATO nations.
Lots more parking room for aircraft as well....then you could carry more than a half squadron.
But what price flexibility and capability.....when it really doesn't matter as your Carrier is not meant to be used anyway.