Well mate, why do you not use the guide on the forum ? http://www.imperialgunnery.com/
picture 1,2, 4 and 5 I have never heard or seen as repro so I am 100% sure it is original.
The lightsabers are harder to spot.
The weapons on the last 2 pictures, drop them in a glass of water and if they goes to the bottom they are for sure repro. If they go the surface there is a very big chance they are original.
The spears if they look painted they are repro if not there is a good chance they are original.
About the axes place them in water if they sink they should be original unless they are maid of metal. If they go to the surface they are repro.
Picture 7 and 8 if they are painted they are repro, originals goes to the surface. I don't no about if the repro sinks.
Picture 6 if it is metal it is repro and, but there is also plastic repro versions of this weapon.
But maybe the guide can help more.