There is a 36 month time period to get the CPL after passing the writtens, and with only 90 hours Shane will need to do some significant hourbuilding as well as complete the CPL course.
Realistically, with winter just starting, the only way to absolutely guarantee achieving that would be to go over to Florida for 6 weeks or so.
Mind you, a couple of months in Florida in the height of the British winter sounds quite nice!
But, expensive of time and money regardless.
G