Ed,
A another solution is also to delete it of the game. This is a very wrong capital anyways. You cannot get it on blueprint because of that, but well, bad idea too.
I will just hide it on the next update then delete it on the next version of Starsector.
Davido,
You can, except the Blevis, every ships can be obtainable.
Pre-changelog:
-I will say that now, but every "fake remnant ships" than you can found on this mod will be disabled for a tiny amount of time. (They will only appears on scavangers fleets)