Thanks very much for that kind offer!
I must do some more research into public transportation! I suspect getting to Toronto would be a very long bus ride. I can't imagine I'd mind sitting on a bus for 12 hours after three days on the bike, but before the ride I'd hate it.
This probably won't be happening this year... too complicated.
I know I couldn't hack that long on the bus, I did 8 hour trips up to northern Ontario before I had a car and it was brutal. Maybe next time we run the Manitoulin, or even think about doing the Granite Anvil in 2021 when it's on again, we had a few riders from the PA randonneurs do it; I remember their jerseys.