Where can i get a Limesdr 1

I'm working on a private LTE network and wanted to use Limesdr as my EnodB for it ,but all my search are leading to a Limesdr mini 2 ,which is kind of expensive ,so does anyone know where i can get a Limesdr mini 1 cz its significantly cheaper ,or is there any other sdr that can also work as a EnodB