Hi,
the Wyrm in the Alpha4 is taken from Hellfire and coloured green, that's it.
Adding the Ice Stalker was a work of 5 minutes - replacing the Corpse Skeletons' names and colouration file with "Ice Stalker" and the blue colouration file in the same folder.
I think you can reuse the Incinerator from the Alpha4, it should work in all later versions, too (oh, no, you have to convert it to CL2, of course)..
the Wyrm in the Alpha4 is taken from Hellfire and coloured green, that's it.
Adding the Ice Stalker was a work of 5 minutes - replacing the Corpse Skeletons' names and colouration file with "Ice Stalker" and the blue colouration file in the same folder.
I think you can reuse the Incinerator from the Alpha4, it should work in all later versions, too (oh, no, you have to convert it to CL2, of course)..