The Temple Guards can be found at a website called Propstore.com - but they're expensive!
This screen-used suit will cost you £3495.00 (that's $4959.00 American). The helmet is made of black metal and leather, The armour is leather. The snakes emblem is moulded resin sprayed silver. The skirt is leather, secured to a black leather belt embellished with brass-coloured discs.
They also have a very nice single chest-piece for £995.00 ($1319.00 US)...
...and a couple of helmets - though the masks seem to have disappeared.
Possibly you can't afford these prices, but it's worth going to the site for reference photos of these and other CONAN original props they're selling.