"...buy a cheap reloading tumbler..." How inexpensive? Try a gun show. Or the EE. Mind you, like mlehtovaara says, if you're close to the border, you can bring reloading equipment back with no fuss. Pay the PST and GST or the friggin' HST, if it applies. $30 difference between here and the U.S. for a Hornady tumbler.
"...for the noise level..." Put a cardboard box over it. "Suppresses" my old Lyman tumbler well.
A $1 store plastic collander with the bottom holes drilled bigger, makes a great media separator.