Hmm, I can only say that Disguise card goes for around 40k I think, but it is really easy to get if you are BS or WS and you constantly go in Skellington.
You can sell Mace[4] to the NPC or you could try to upgrade it to +10 and then sell i for, I don't know, 400k?
+10 Main Gauche [3] is lame... Everyone needs the one with 4 slots.
I checked
http://pc.bot.nu/ and found that you can sell +10 pike [4] from 1,2m to 1,9m.
And I don't know what to say for the rest of your stuff.
Check out at
http://pc.bot.nu/