Red Wigglers shouldn't be to difficult. We use a 40 gallon plasic yard (trashcan) with 30 or so small holes drilled along the sides and bottom for drainage. About once a week add some garden clippings, manure, whatever is around (about 4 to 5 inches deep) and they will survive and multiply. We keep ours out by the pond and if anyone needs worms for fishing or feeding, there are plenty. Once the can is full in the fall, empty it out, keep the worms, and start again in the spring.
Only down side is that you would have to move them to a garage for extreme cold spells.
To avoid any smells dig down 2 inches and place new scraps then cover them up.
