Hyperlite Binding Plate Replacement?

I have a pair of older prob 2010 hyperlite bindings (open toe) and I broke the plate on one boot. This is the plastic plate that attaches to the boot with four screws and then bolts to the board. I would like to just replace the plate as the bindings are still good. Anybody know where I can find something like this?

I have searched on the internet and found nothing. I dont know exactly what bindings they are as it was a package deal with the board and there is no name or number on the bindings.

Any help would be good, rather than buying new bindings.