Brake proportioning valve?

[Nodnarb76]

So today we tried to replace both front brake hoses. The ends that connect to the hard metal lines were too far gone and will get destroyed when trying to remove them. I am going to have to replace the hard metal lines that go from the proportioning valve to the rubber brake hoses. It looks like I can pick up some from LMC. Where the hard lines go into the proportioning valve look rusty and corroded too. I believe I will have to replace the proportioning valve as well. I cannot seem to find a source for this valve. Does anyone have a link or suggestion?