Thanks for the responses.

I have already rough cut about 10 braces with legs of 32" (45.25" diagonal). But have many more to cut.

If you look at the barn I mentioned in the original post (page 3 of Sobon's book), do think I could use these shorter 32" leg braces for the smaller bents (2nd floor) that support the purlin plates? And then cut longer 36" leg braces (about 50.9" diagonal) for the main bents on the 1st floor?