Are we capable of installing and using EV based plug-ins if we're using a port from Nova? I tried to put in Galactic Scourge, but it doesn't load after creating the character.
No, this is the reason why Macdevil had to port Realm of Prey from EVC to the EVC port of EVN. Other things like this were done for classic EVC and EVO plugs, but only the really popular ones.
Yeah, Galactic Scourge is a plug I've thought might be nice to port. But you'll probably have to do it yourself.