You're welcome. The other thing about a Class 4, is that any physician can do the medical, it doesn't have to be a Transport Canada certified medical examiner. Your family doctor simply has to fill out a form that is sent to TC. And the medical interval is, I believe, 5 years.
Check out
Canadian Aviation Regulations - Part IV, Standard 424, Table, PHYSICAL AND MENTAL REQUIREMENT for the applicable standards for the medical classes.
Beech