Paralinx en teradek prices are absolutely fine.. You have not met the real proffesional sollutions.. (20+K )
As most of the URSA users are shooters and not live cam guys i don't see this happen... Just get a good teradeki system that is Vlock which slides on the back of your cam.
About control.. You can control the ursa from your phone now.. Wireless by bluetooth.. You want wireless shading from an atem.. Then you need to look for alternative solutions from 3th parties like Skaarhoj. There will be a Vlock unit for that too some time this winter..
So post your setup!!