There's a lot of solo-under-supervision in Canada, so much so that one student had to do more hours to make up the deficiency when he tried to get hiis licence issued. It means flying along with an instructor who in theory adds nothing to the conduct oof the flight. Once you have a Canadian PPL, you can fly on it in Europe, but it won't be a big effort to change it to an EASA one, as mentioned. It strikes me as strange that you need 100 hours for an EASA PPL - who told you that?
FCL.210.H PPL(H) — Experience requirements and crediting
(a) Applicants for a PPL(H) shall have completed at least 45 hours of flight
instruction on helicopters, 5 of which may have been completed in an FNPT or FFS, including at least:
(1) 25 hours of dual flight instruction; and
(2) 10 hours of supervised solo flight time, including at least 5 hours of solo
cross-country flight time with at least 1 cross-country flight of at least
185 km (100 NM), with full stop landings at 2 aerodromes different from
the aerodrome of departure.
(3) 35 of the 45 hours of flight instruction have to be completed on the same
type of helicopter as the one used for the skill test.
As a matter of interest, who is training on 47s out there? The last person I heard of was Rob Wood in Pitt Meadows BC. It's a good choice of machine. If it is Rob Wood, he is an excellent instructor.
Phil