If you are careful and recognize how to work with the chemicals, there's no reason that you should be afraid to handle them (or let others suggest it's frightful).

The potassium dichromate is the only chemical that probably isn't in a normally stocked darkroom. I've heard that some kind of Kodak Tray Cleaner will work, as it's basically an ideal bleach of sulfuric acid & potassium dichromate.

Hypo clearing agent is sodium sulfite + a pinch of sodium bisulfite; I don't see why that wouldn't work for the clearing bath.