I'd think A7 would be worth upwards of 30e.
I sold a pair of Indscribe R9 Zodiac daggers a couple of months ago for 30e to someone who was spamming WTB.
A4 is nice ( +5 energy seems to be in demand) IDK if Gothic is an in demand skin, I always keep mine.
A6 ( i just bought a +5 energy one for 15e)
B4 may be of interest to Lily