About 40 to 80 thousand CAD for completion in minimum time depending on desired ratings. Add 20 per cent for a realistic representation. Plus living costs for 6 to 12 months. Will you be eligible for employment in Canada as a citizen or permanent resident?
ICAO CPL(A) -> Part-FCL CPL(A): credit of 10 to 18 hours depending on experience.
ICAO IR(A) -> Part-FCL IR(A): required to do at least 15 hours of flight training at an ATO, of which no more than 10 hours in an FNPT II.
ICAO MEP -> Part-FCL MEP: to be determined by UK CAA after receiving a recommendation from an ATO.
ICAO FI rating -> Part-FCL FI certificate: credit of 15 hours.
--- UK CAP 1721: EASA Ref 2013-00004.
Sufficiently experienced ICAO IR holders may pursue a Part-FCL IR under the CB IR pathway without undertaking the theoretical knowledge course or exams. However you should probably budget for an approved ATPL theory course and exams. Any ICAO PPL satisfies the pre-requisite for enrolling in both the ATPL TKC and a CPL modular training course so no Part-FCL PPL conversion is necessary.
If Canadian training need not be tailored to fulfill post-graduation work permit requirements or to accumulate sufficient CRS points for a permanent residence application and if continuity of training is not a concern then you might consider doing the private pilot training, the hour building, and the instrument rating in Canada and the EASA ATPL theory, the EASA CPL course, and the EASA MEP at an EASA ATO. From there it would take one to two weeks to obtain the Canadian CPL/ME/IR-ME.
This strategy is likely to prove cheaper because of the more favourable credits available under the Canadian Aviation Regulations to ICAO licence and rating holders. Eg, a Canadian multi-engine rating may be endorsed in a Canadian licence without an exam or test if an ICAO MEP has been issued in the recent 12 months. Similarly a standard or foreign-based Canadian PPL may be obtained quickly and with minimal effort and most if not all of the experience requirements for a Canadian CPL or IR will be satisfied by an ICAO CPL or IR holder respectively. The few experience differences, eg spinning, more extensive night training, slightly more demanding cross-country, etc, can be completed in Canada in under a week or done during ICAO CPL training. Canada also provides a 15 hour credit towards its flight instructor rating if an ICAO equivalent is held. There is a list of ATOs under direct EASA oversight here (
link) and in addition Naples Air Center in Florida, as a satellite of Andrewsfield Aviation, operates as an EASA ATO under UK CAA approval.