I need advice on sexant sq 5ac and 5ac lite

Am new here and new to mikrotik.i heard their sexant sxt sq5ac and 5ac lite is good for carrying ip camera traffic as ptp and cpe to base station.i an to install total of 40 ip cameras using 23unit of sxt sq 5ac or 5ac lite.please i need advice on this sxt model if it is stable to carry video traffic wireless as ptp and as CPE to R15s sector antenae base station.please advice a new user.
Also which is the best to use for base station.R19s or 15s