The living within 45 minutes of base is a standard requirement, although perhaps as it is on the 'Essential Criteria' list it should say, "The successful applicant must be prepared to reside within 45 minutes travelling time of the operating base."
However you could always say that the advert doesn't state what means of transport you must use to be within 45 minutes travelling time
(90 mile radius around Hus Bos is quite a large catchement area
)