Welcome to the forum!
I would strongly suggest that you also take a look at Chartered Bank notes (
https://cdnpapermoney.com/notes/issuers/6).
There are a huge number of varieties and you could get a much bigger "bang for your buck", so to speak. You can find some pretty scarce notes within your budget and even make new discoveries because it's a much wider and thinner market. Your collection would be a lot more interesting as every note is different and represents a different era and region of Canadian history.
Also, there is a much greater challenge in actually finding each note as most are not simply available to be ordered on-demand from a dealer. It takes a lot more patience to find a particular note but that's what makes it all-the-more rewarding. Also, there is less nit-picking over imperceptible differences in grade:
The market for
modern Canadian notes (Bank of Canada) has followed the US and basically come down to who can get the highest PMG grade for a particular note with a 68 EPQ being 5x the price of a 67 EPQ and so-on down the ladder with anything below Unc60 being considered uncollectable junk. On the other hand, high grade in the Chartered world might mean VF, sometimes EF or AU. Some more common notes exist in UNC but generally everything is so rare that even a mid-grade and low-grade examples retain their value.
Here are a few banks with beautiful historical notes which are accessible within your budget, even in high grade:
The Bank of Brantford
The Bank of Clifton
The Colonial Bank of Canada
The International Bank of Canada
The Bank of Prince Edward Island
The Westmorland Bank
The Zimmerman Bank
There are also the mainstays (where you can find more common late-issues) like:
The Canadian Bank of Commerce
The Dominion Bank
The Bank of Montreal
The Bank of Toronto
The Royal Bank
etc
As others have suggested, quality over quantity! If you buy fewer notes but perhaps stretch your budget a little to maybe $1000 you'll have a much more interesting collection in the long run, I believe. Try to always get the best of any particular type but don't get so obsessive over grade that you're only looking at Gem Uncs.
Good luck!