Halthron:Tom of Diver's Network had some plates made. Stainless Steel, 4.5 lbs and shiny. I haven't used one but they looked nice when I saw them. He posts here under the username diveshop@diveph.com if you want to PM him. If I remember right, he was charging aroung 2500 Php. If you want a wing and harness too, he said he was getting an order in the next few days.
We have SS backplates and single tank adaptors at a fraction of the price of Manila Market, they are also good for rebreather since they will be able to carry them through the backplates handle.
They are both laser cut (robot arm), no punching or manual cut on it.
STA SS 1,400PHP.