Guessing a MECIR isn't instantly transferable either?
I wish it was ! However CAO 40.2.1 does allow some cross-crediting. Section 8.3 requires 20 hours instrument time and 5 hours pic time in the category of aircraft, so they would be your minima.
8.3 The aeronautical experience of an applicant for the issue of a command instrument rating shall include:
(a) 50 hours cross-country flight time as pilot in command; and
(b) 40 hours instrument time, of which not less than 20 hours shall be instrument flight time on the category of aircraft for which the rating is sought; and
(c) 20 hours cross-country instrument time; and
(d) 10 hours dual instrument flight instruction time; and
(e) except for those persons whose licence is restricted to day only operations, 10 hours night flight of which not less than 5 hours shall be as pilot in command on the category of aircraft for which the rating is sought.