69 power brake booster pedal rod

[BigSix]

I have the cap'n fab bracket and a 1969 booster/master. I accidentally broke the plastic "piston" style thing where the pedal rod goes in. So now I need to buy another booster. Is there another year booster I could use where the rod comes out easier so I can tap it for the conversion? I am keeping drum/drum so if there was a booster that would work with my new 1969 master and is easier to remove the pedal rod- that would be amazing. The pedal rod in the cardone. 69 booster won't just pull out. Looking ideally for a stronger booster with a rod I can just pull out.