Nobody can tell if you are listening to a CB radio so if police tell you differently- something is very suspect. They also cannot confiscate it- only radar detecting devices. Transmitting on a CB in Ontario brings you into the realm of the distracted driving law here- applies to all handheld devices. Hams still have the right to transmit using their microphones due to an exemption by regulation. They have renewed this once already for a number of years. Smart hams carry a copy of this regulation in case they are stopped. In their zeal to hit texting etc. they also caught 2-way radios in the net. You can listen to CB and adjust it as long as it is mounted in the car- not a handheld version. Good luck.
Yes. I would suggest that a trailer that size would definitely need a weight distributing hitch. It must also be set up correctly- the dealer should do that but it may need adjusting later depending on how good the original setup is. I still use a WD hitch on my Sierra although it does not take much equalizing- I would still never tow without it. I only tow light boat trailers with a drawbar. Practise on some of the more rural highways outside of Toronto- avoid the 400 series until you have more confidence. Practise backing up in a mall parking lot- one where there is lots of room. It will take a while to catch on. Extra mirrors and a person to guide you helps.
We have towed that route in winter with a 21 foot trailer many times and have seen all sorts of weather conditions. We used to tow with a Safari van- not the best- now use a Sierra 1500- wonderful combination.
I am leery about the the tow vehicle - it seems to have lots of power but watch the short wheelbase which can cause sway problems. Not a good thing even under the best of conditions. I would definitely tow around Toronto and check out the performance. Practise until you are confident in the performance. Learn how to back up the unit- you will need that skill. Keep your speed down- 90-5 kmh especially being new to towing.
When stopping for fuel, check out the pump location and whether you can exit the station. Many pumps are not RV friendly.
Use a good brake controller- we use a prodigy and are very satisfied.
We use the CIPA slide on mirrors - they are custom made for each vehicle- not sure if they make them for yours- otherwise universal clip on mirrors would work but may vibrate somewhat.
Don't leave canned food in the trailer overnight- We put ours in a box and carry them in the truck. We do use the trailer in the freezing weather but have lots of experience and also carry a generator. We do not put any water in the trailer until in warmer states. We carry jugs of water for use until we are south.
If the road conditions turn negative- pull off- get a motel room and wait it out. We have seen lots of trucks and trailers who did not and were in the ditch or on their sides.
The 401 around London and Woodstock can be especially nasty due to lake effect snow. Check out weather conditions.
Good luck and enjoy the trip.