Strinjg length and brace height

[buck50]

Hey all. Anyone tell me what the string length and brace height is? Snagged me a '54 Ben Pearson model 304 for a decent price. It's a 64" 50# @ 28. I do not have a string and am not set up to make my own Dacron(yet), so will be ordering a couple from 3R most likely. Don't know if the AMO standards were applied to manufacturing back in '54 so should I go ahead and order a 60" to start with or what. Normally I'll go an inch longer so I have some room to experiment with the brace height for tuning purposes, but just don't know where to start with string length and brace height. Thanks.

[TexMex]

If you are ordering from 3R, I would think that by giving them the bow length they you make the string the right length.