master cylinder conversion question, 65 barracuda

As of now, my car still has stock 9" drums, manual. I pulled the master cylinder today since it was 100% shot. Can i order a dual bowl master as a replacement and just hook up the brake lines that way? Im fairly nervous about running this single bowl drum system with 9 inchers...It definitely does not seem safe. I aim to do a disk brake conversion in the future but dont currently have the money. Any help would be much appreciated

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