I know I really shouldn't post this, because it's been mentioned in this thread that I know you've been reading, but I'll post it again.
You should probably just put in the following:
410.86250 416.31250 R 123.0 PL OPP VR 01 Vehicular Repeater
411.31250 416.51250 R 107.2 PL OPP VR 02 Vehicular Repeater
411.51250 415.86250 R 136.5 PL OPP VR 03 Vehicular Repeater
Both the repeater output which is on the left, and you'll probably hear the plane on the input, the frequency on the right. Another option is Sim11 - 148.765, plus, if you got a digital scanner, they'll probably be patched into one of the digital TAC talkgroups.
If there's anything else, I'm sure someone else will be able to answer.
So far, this Air Enforcement, has been heard both in Southern, and Eastern Ontario.
I'm sure there could also be the possibility that they'd also be in contact on the local UNICOM frequencies to be in touch with local airports for traffic in the air as well.
What frequency is the plane on??