As I said getting job as a RN is not an issue in Canada or Ontario. There are many other factors you have to consider. It is unfair to suggest any thing without understanding the situation.
Agencies work on many candidates at the same time. If you do not hear from them in 48 hours, you can call them back. Which area you were offered job? is it Caring heart guys offering you job? tc
In Ontario you have lots of opportunity. You are right, pay might be little low if you convert it in US currency but life is good, here. If you have experience in LTC, I can even help you get the job here. Downtown Toronto is costly but there are other options nearby. It all depends on your preferences. What motivated you to move to Ontario/Toronto?