Here is a pic of some amaryllis belladonna I purchased from Ken Hettman. They are healthy and huge and very reasonable. I've been talking to him for a while so my memory is a little fuzzy But if memory serves me, they are clearing property owned by his church which is loaded with the belladonnas. They are priced to sell. Contact Ken Hettmann at info@safetyequipmentcorp.com
while I have zero affiliation with Ken or his church, i can vouch for the good bulbs I got. Not necessary but you can say you heard about him/bulbs from Voss.
theres lot of data online about hardiness and care of amaryllis belladonna.
Amaryllis Belladonna: bargain alert
Ken is in CA and he will ship