For the mask I used the kit from Moncal. It includes the snoot and the goggles. I had him paint it. I stitched some Leather to the snoot and riveted an elastic strap to it.
On the goggles all I had to do was add an elastic strap and the greeblie. The greeblie is a washer with 2 holes drilled into it to match the Gentle Giant Garindan Bust and painted to a weathered golden tone. I took an old ball cap and cut the bill off and glued some leather to it with E-6000. This covers my forehead and makes it seem as if the whole mask is one piece. I also wear a balaclava under all this.
Hope you found this useful. Feel free to contact me with you have any questions or comments.