That's a kind of unrealistic budget from my experience. Being in my 70's, sleeping on the ground is not an option, not to mention all the wasted time spent setting up and striking a campsite. I did it on the first weekend in October and it was great. Cool, sunny weather, light traffic, and I had almost every tourist site along the way to myself.
Another benefit is that the season is basically over, lodging is readily available and priced lower, not to mention that the staff is less stressed and more approachable. I learn a lot chatting with the innkeepers over a cup or two of coffee in the morning.
As for a budget, I allow for an average of two tanks of fuel per day, about $40. I figure on $50/day for meals and "beverages", and $100 for lodging. An additional $25 covers admission fees, souvenirs, etc. These numbers are in U.S. dollars. Amounts are about 25-30% higher if figured in Canadian currency. This works out to $215/day. If you are traveling in a group, you can share rooms and save about $40-50/day.
As far as money, I have one credit card that is used for fuel and lodging. Make sure to advise your credit card company that you will be traveling in Canada. I had charges on my card declined for the first two days of my trip until a young lady at a gas station in Wawa contacted the company and got things straightened out. I carry an emergency stash of $100 bills along with important documents in a Zip-Loc bag hidden in one of the armor pockets in my riding pants.
Make sure you have a AAA RV Plus card. It gets you a discount at hotels, and 200 miles of towing if your bike breaks. Check to confirm it will work in Canada. There is a lot of wilderness on the North Shore.
