Roy, I had to replace a few of the hatches on my trillium
1300. our local RV shop in Ottawa had the exact same hatches but only in white. I picked up some almond Krylon spraypaint to get a better match to original.
here is a link to their parts catalogue, look on the right side of the page linked you should see the gravity and city water hatches.
GO-RV.com - RV On-line Catalog
By the way, I have seen other RV dealers with this same online parts catalogue, you may find someone in TO that can order them in.
Oh, the RV dealer in Ottawa is at: Belangerrv.ca
i'll post photos of the hatches on my trillium if you'd like
( i just re-read your post sorry, it looks like you are already that far ahead. )