You can get cheap but quite adequate remotes with intervalometers for many dslrs for $30 to $50 dollars from places like B&H or Adorama or Amazon.
For high speed slo-mo, something like the Casio EX-FH100 or EX-ZR100 may do the trick, although at the expense of resolution, 1000fps all but unusable, 224 x 160 at 420 fps not bad, as good as you got with analog tape, looks like 4x3 aspect ratio. Check out the reviews & samples on youtube.
I appreciate you and others making me aware of "CHDK". CHDK is a truly fascinating introduction into something I didn't even know existed. I will check to see if any of my Canon cameras are included.
However, what I was seeking was an off the shelf Camcorder with the features I described.