I have an old metal shop vac bucket I bought off eBay that was being sold for cheap. I use it to keep my Electrolux and other vacuum wands organized away.
It won't be hard to make a new motor for this. Just get any metal drum lid that fits, and then cut a hole through it and mount any old canister vacuum motor that has an exhaust port. Cut another hole for the hose and you're good to go.