Allowable EIRP for 11 GHz in the US is 85 dBm (or 55 dBW). Applying a higher gain dish that supports that results in a 100km link with 30 dB or more of SNR. The math is sound from a link budget and regulations perspective.
Mimosa doesn't manufacture antennas, but we do work with manufacturers to bring compatible options to market. As I said, some of these are forthcoming, and we are waiting for the manufacturers to announce their offerings.