Ficus lyratas are quite commonly available throughout the US and via the internet. Many Home Depot stores carry them from time-to-time when they have a large contract with nurseries. If you Google "Ficus lyrata sales," you will find online sources.
Lyratas may be somewhat complicated to propagate outside of a nursery, but they are readily propagated in nurseries in south FL and southern CA. These nurseries ship them to retailers throughout the US.
As with most larger plant species, air-layering is the most effective method for propagating Lyratas.