BBP axles for 7 1/4 needed

I am waiting for Dr Diff, but if I can get sooner- great! I have a 68 Dart 4 door /6 car, going to BBP, need axles, hit me up if you have something that will bolt in? Also, I am considering gettting an 8 1/4 and paying for shipping if someone has something bolt in.
Which axle's do you need? The conversion axles for the original SBP 7 1/4 to convert to the LBP, or the big bolt pattern axles for the later year 7 1/4 rear that came with big bolt pattern?