My numbers for this are primarily based on this thread here (WTS Guardian-Vexor) which seems to have several offers in excess of 500B, some quite a bit higher. I looked briefly at the posters and most of them seem to be real people. Looking at it, you also posted there and said that 550B was too low? So I’m kinda confused by what you’re saying, unless I’m misunderstanding. I also found some conversation suggesting someone bought one through contracts last year for around the same price range, so it doesn’t seem like an unrealistic price point to me.
Anyway, I’m not aiming for some pie in the sky price like the guy in that thread - but anything less than 500B would fail to reach what I wanted by selling for to begin with, so what will be will be.