A bit of boring advice:
Get only a few at a time, don't overcollect.
Because it's less gutwrenching when the plants don't thrive and just wither away.
Been there, done that, got the t-shirt. I'd say start out with three or four new plants, give it half a year or more, then get the next batch.
Can't really comment on the bulbos (we only have one, for now ), but I definitely recommend M. schunkeana - such a wonderful little plant, happy grower, and those blooms!