So, I've finally got one project finished and I want to share the result with you
It has LAN input which is switched for two Etherdream DACs. Each of these has 2x DB25 (ILDA standard) and 2x CPC16 (way more enduring connector) outputs to connect laser projectors. + DMX I/O/through and few more LAN outputs (if I ever need to connect more DACs in the future)
Now arranging 2channel show makes far less of cable-mess than it used to