Could a Colossus carrier become a submarine depot ship?

How useful would a Colossus-class light carrier be if converted into a submarine depot ship for the Royal Navy?

Potentially useful, because the carrier offers considerable space for the role.

A Colossus-class light carrier is considered a potentially useful hull for conversion into a submarine depot ship. The reason given is its considerable available space. The brief answer does not specify a conversion design or the facilities it would carry.