First, let me educate you. You haven't "struck a deal" unless:
1. you have seen the bike in person, (so the seller knows your a real buyer);
2. you have decided to forego, seeing the bike, and purchase sight unseen, (at which point you should be willing to place down a deposit of at LEAST 20%, again to v=confirm to the seller your a legit buyer);
Just saying via Kijiji, "yep I want the bike and will pay asking for it", does NOT a deal make.
As has been stated if Toronto, is too far for you to travel to get the bike, (come actually see it), then as a seller, I would consider the bike for sale, until such time as you place a deposit, (substantial enough to make it worth my while to go get the bike safetied, yes the safety, depending on where he gets it done could run $60 - 100, BUT there is also his/her time and effort to get the bike to the shop etc).
Until, then the is No "struck a deal". The bike would still be listed and whoever shows up with cash and a trailer, takes the bike. If the bike was listed as certified, then yes it is the seller's responsibility to have it done BEFORE you show up to collect the bike, But that doesn't preclude asking for a deposit, (NOT to pay for the safety, but rather to show your a serious buyer).
Dealerships, lists bikes sold certified, BUT they don't do the safety, BEFORE a potential buyer ponies up a deposit, so why would you expect this seller to do any differently?