This information is too little to late, but it might help some. Here is the short version.
For the RONA stores that are closing (at least in Edmonton), EVERYTHING in the store is 40% to 60% off. I just came back from from the one and unfortunately most big ticket items where gone in tools. But I was amazed to find how much paint and stain and other semi-specialty items was still there. Like orbital sanding pads, ladders, snow blowers, still a lot of good stuff. But probably not for long.