I've never been fond of the 5½. It's sort of a B*****d between the 5 & 6, as far as I'm concerned.
The 35, however, can be tweaked and tuned to be a terrific smoother.. Most need the mouth patched, or even a whole new sole (Lignum Vitae works great. Goncalo Alves is also good) glued on. It just depends on how much wear and tear there is on the original. I have three 35's, and they're well up among my favorites.
Nice finds! You're beginning to catch up. Another 80 or so, and...