PC on these

Only my opinion, but since noone else is giving you one....

I think the two mauls and the chaos axe have some value.

Chaos Axe because it is a chaos axe. Less than Max damage I think you may be able to get between 1 and 5K.

Ebon Maul has value to a hammer warrior who is always enchanted. I think they would want to replace the Warding with something more useful. Again,. I think 1-5K is reasonable.

The Vampiric Maul only has value to a low level hammer warrior due to the 6 requirements. The mods are not good so 1K is probably all you could expect.