There's really not much to it.
I always have the DW pull the toad into position while I give directions. When I give her the stop sign... she sits with her foot on the brake while I make sure that the tow bar will reach. Then I give her the "kill" sign and don't have my fingers anywhere near the tow bar while she shuts the toad down and sets the brake.
I doubt that you'll need to change your turning radius at all due to the toad... but this depends on the length of the coach so you'll have to feel your way around that one.
Knowing that you cannot back up, make absolutely sure that you have an exit plan before pulling in someplace for fuel, etc.
Keep the rear camera on and consider a tire pressure monitoring system which covers both the coach and toad. A flat on the toad could go for a long time before you discovered the fire.
Be sure to pump the brakes on the toad a half dozen times or so when setting up your brake system. As I understand it, it bleeds off pressure and ensures that the don't lock up the first time the coach slows down.
Make sure you research how to maintain your Aventa tow bar. You should remove the retainers on those rubber boots and clean/lube inside regularly.
Best of luck.