Personaly I was also really looking at a real oldschool fuzz tone and indeed there is no real oldschool fuzztone on the PODHD, that is the reason when I bought my PODHD500 I also bought a Germanium fuzzbox, that I hooked up to my PODHD500 to make a killer tone

there are pretty good fuzz boxes, but if you want the beez knees of fuzz boxes you might want to get a pedal for it.

There are so many different varieties of fuzz, that it would really hard to please everyone, but there are 9 different distortion models that are based on different fuzz pedals.  There's the Color Drive (Ok, technically an OD, but it's more fuzz than OD, if you ask me), Buzz Saw, Facial Fuzz, Jumbo Fuzz, Fuzz Pi (Big Muff), Jet Fuzz, Line 6 Drive, Sub Octave Fuzz, and Octave Fuzz. I know some of these probably are not necesarily vintage in character, but it should give you a good pallet of tones to work with. You can always try stacking different models together, too.