Hi Grace878,
Although it would depend to some degree on the size you are looking for … it’s unlikely that you will find an “all latex” mattress and a foundation that retails for $2000 or less in Canada (especially now with the current exchange rates).
As far as I know the Dreamstar Natural Escape mattresses has a 6" 1.8 lb polyfoam support core with a 4" Talalay latex comfort layer and a cover that is quilted with wool and 1" of polyfoam. The specs without the polyfoam density are also listed here. It’s a latex/polyfoam hybrid which of course would be less costly than an all latex mattress. There is more about latex/polyfoam hybrids vs an all latex mattress in post #2 here. It may also be possible to customize the density of the base layer as well. Any knowledgeable retailer that carries it should be able to confirm that the specs are correct.
A forum search on Natural Escape will bring up more comments and feedback about it and I think the reason your search didn’t find any results is because you had an “s” at the end of escape.
This is probably the post you’ve already seen but the better options or possibilities I’m aware of in the Southwest Ontario area that would include Burlington (subject to making sure that any mattress you are considering meets the quality/value guidelines here) are listed in post #8 here.
I keep the forum lists up to date and edit them as I become aware of new information and the last update to the Southwest Ontario list was on Feb 9th, of this year.
Phoenix