This is like art painting? You could possibly find a camcorder in that price range but even something like a GoPro might meet your needs.
Videography
Im not aware of the key differences, I suppose It doesn't matter but I haven't actually ever used a GoPro, is it not the same thing more or less?
Edit: also yes, oil painting, i do a lot of arts and crafts and figured it might be fun to film all my super long ass projects
Sounds like you may be looking for something like a timelapse recording. I have a 7D and *have used 128GB CF cards for 12 hour time lapse before (I did swap out the CF cards mid capture). All I needed was either a connected remote/intervalometer, or plugged it into a laptop (I think the EOS series might actuallly connect to canon's EOS-utility software via WiFi). If you want to try a free option, and have an afternoon to kill, you could give Magic Lantern a shot. ***Note all/most of these solutions will only give you stills which you will then have to stitch together to make the video, and then overlay the voice/narration, although I'm sure you already knew that - that was just for the poor bastard that finds this reply a year from now
You could also try something a prepackaged solution like: Some website which was paid to advertise these cams. I have no experience with any of those solutions. You could also reach out to youtubers and ask them what their setup is like. This was the first hit when I searched for 'painting timelapse' https://www.youtube.com/watch?v=1FWIoKC7x9w
Honestly I think even though 32Gb is your limit, I'd try Magic Lantern. You get a intervalometer (which is 75% of this), and its free. Try this, get it setup with your Canon, and point it out the window (please don't point it directly at someone's windows/house) and let er rip. There are calculators and tables on the internet for various timing scenarios that you can check out
Ehhh, Time lapse would not be ideal. I pick and choose certain moments to highlight the progress, plus I have a habit of being somewhat erratic and picking up the camera to film a side quest or two so stills aren't really what I'm looking for