Robb;
Please do not forget to fill out your info in the signature box. I suspect you may have overlooked it. Go to your profile and look carefully for the signature box and put in the info you listed in your post here and you won't have to repeat yourself all the time. If you want some ideas look at my overblown signature.
Ask your local radiator shops if they can recore that radiator. If they can't then go to a truck shop like International/Navastar, Freightliner, Kenworth or Mack. I know these shops can do the job because they have helped me with my trucks before. Plus they will do a high quality job.